• http://repository.usu.ac.id/handle/123456789/17531
  • http://repository.usu.ac.id/handle/123456789/4181
  • http://repository.usu.ac.id/handle/123456789/5074
  • http://repository.usu.ac.id/handle/123456789/26919
  • http://repository.usu.ac.id/handle/123456789/4194
  • http://repository.usu.ac.id/handle/123456789/1690
  • http://repository.usu.ac.id/handle/123456789/7355
  • http://repository.usu.ac.id/handle/123456789/20132
  • http://repository.usu.ac.id/handle/123456789/1697
  • http://repository.usu.ac.id/handle/123456789/26019
  • http://repository.usu.ac.id/handle/123456789/628
  • http://repository.usu.ac.id/handle/123456789/664
  • http://repository.usu.ac.id/handle/123456789/5076
  • http://repository.usu.ac.id/handle/123456789/623
  • http://repository.usu.ac.id/handle/123456789/1691
  • http://repository.usu.ac.id/handle/123456789/1700
  • http://repository.usu.ac.id/handle/123456789/5077
  • http://repository.usu.ac.id/handle/123456789/17533
  • http://repository.usu.ac.id/handle/123456789/4200
  • http://repository.usu.ac.id/handle/123456789/4201
  • http://repository.usu.ac.id/handle/123456789/4196
  • http://repository.usu.ac.id/handle/123456789/5081
  • http://repository.usu.ac.id/handle/123456789/4177
  • http://repository.usu.ac.id/handle/123456789/23804
  • http://repository.usu.ac.id/handle/123456789/22617
  • http://repository.usu.ac.id/handle/123456789/4187
  • http://repository.usu.ac.id/handle/123456789/3792
  • http://repository.usu.ac.id/handle/123456789/24829
  • http://repository.usu.ac.id/handle/123456789/18451
  • http://repository.usu.ac.id/handle/123456789/6383
  • http://repository.usu.ac.id/handle/123456789/24463
  • http://repository.usu.ac.id/handle/123456789/2062
  • http://repository.usu.ac.id/handle/123456789/2043
  • http://repository.usu.ac.id/handle/123456789/1527
  • http://repository.usu.ac.id/handle/123456789/1491
  • http://repository.usu.ac.id/handle/123456789/4227
  • http://repository.usu.ac.id/handle/123456789/2059
  • http://repository.usu.ac.id/handle/123456789/1535
  • http://repository.usu.ac.id/handle/123456789/4226
  • http://repository.usu.ac.id/handle/123456789/1170
  • http://repository.usu.ac.id/handle/123456789/18855
  • http://repository.usu.ac.id/handle/123456789/2041
  • http://repository.usu.ac.id/handle/123456789/1780
  • http://repository.usu.ac.id/handle/123456789/1771
  • http://repository.usu.ac.id/handle/123456789/1157
  • http://repository.usu.ac.id/handle/123456789/5117
  • http://repository.usu.ac.id/handle/123456789/2060
  • http://repository.usu.ac.id/handle/123456789/25653
  • http://repository.usu.ac.id/handle/123456789/2048
  • http://repository.usu.ac.id/handle/123456789/4977
  • http://repository.usu.ac.id/handle/123456789/4228
  • http://repository.usu.ac.id/handle/123456789/1596
  • http://repository.usu.ac.id/handle/123456789/4234
  • http://repository.usu.ac.id/handle/123456789/1528
  • http://repository.usu.ac.id/handle/123456789/7363
  • http://repository.usu.ac.id/handle/123456789/2063
  • http://repository.usu.ac.id/handle/123456789/3836
  • http://repository.usu.ac.id/handle/123456789/4222
  • http://repository.usu.ac.id/handle/123456789/3837
  • http://repository.usu.ac.id/handle/123456789/4726
  • http://repository.usu.ac.id/handle/123456789/3838
  • http://repository.usu.ac.id/handle/123456789/1603
  • http://repository.usu.ac.id/handle/123456789/6401
  • http://repository.usu.ac.id/handle/123456789/3841
  • http://repository.usu.ac.id/handle/123456789/1565
  • http://repository.usu.ac.id/handle/123456789/4729
  • http://repository.usu.ac.id/handle/123456789/1589
  • http://repository.usu.ac.id/handle/123456789/1587
  • http://repository.usu.ac.id/handle/123456789/1488
  • http://repository.usu.ac.id/handle/123456789/1495
  • http://repository.usu.ac.id/handle/123456789/5125
  • http://repository.usu.ac.id/handle/123456789/4231
  • http://repository.usu.ac.id/handle/123456789/4232
  • http://repository.usu.ac.id/handle/123456789/4733
  • http://repository.usu.ac.id/handle/123456789/4225
  • http://repository.usu.ac.id/handle/123456789/4218
  • http://repository.usu.ac.id/handle/123456789/4221
  • http://repository.usu.ac.id/handle/123456789/1568
  • http://repository.usu.ac.id/handle/123456789/1599
  • http://repository.usu.ac.id/handle/123456789/4738
  • http://repository.usu.ac.id/handle/123456789/1505
  • http://repository.usu.ac.id/handle/123456789/4739
  • http://repository.usu.ac.id/handle/123456789/5131
  • http://repository.usu.ac.id/handle/123456789/5132
  • http://repository.usu.ac.id/handle/123456789/4230
  • http://repository.usu.ac.id/handle/123456789/1593
  • http://repository.usu.ac.id/handle/123456789/25229
  • http://repository.usu.ac.id/handle/123456789/4223
  • http://repository.usu.ac.id/handle/123456789/5135
  • http://repository.usu.ac.id/handle/123456789/1524
  • http://repository.usu.ac.id/handle/123456789/1541
  • http://repository.usu.ac.id/handle/123456789/1581
  • http://repository.usu.ac.id/handle/123456789/5137
  • http://repository.usu.ac.id/handle/123456789/1516
  • http://repository.usu.ac.id/handle/123456789/1624
  • http://repository.usu.ac.id/handle/123456789/1480
  • http://repository.usu.ac.id/handle/123456789/3371
  • http://repository.usu.ac.id/handle/123456789/26017
  • http://repository.usu.ac.id/handle/123456789/1540
  • http://repository.usu.ac.id/handle/123456789/1591
  • http://repository.usu.ac.id/handle/123456789/4751
  • http://repository.usu.ac.id/handle/123456789/3374
  • http://repository.usu.ac.id/handle/123456789/6409
  • http://repository.usu.ac.id/handle/123456789/5139
  • http://repository.usu.ac.id/handle/123456789/28628
  • http://repository.usu.ac.id/handle/123456789/5140
  • http://repository.usu.ac.id/handle/123456789/3377
  • http://repository.usu.ac.id/handle/123456789/1147
  • http://repository.usu.ac.id/handle/123456789/3380
  • http://repository.usu.ac.id/handle/123456789/1545
  • http://repository.usu.ac.id/handle/123456789/3385
  • http://repository.usu.ac.id/handle/123456789/1610
  • http://repository.usu.ac.id/handle/123456789/18860
  • http://repository.usu.ac.id/handle/123456789/3388
  • http://repository.usu.ac.id/handle/123456789/3389
  • http://repository.usu.ac.id/handle/123456789/1600
  • http://repository.usu.ac.id/handle/123456789/3390
  • http://repository.usu.ac.id/handle/123456789/20708
  • http://repository.usu.ac.id/handle/123456789/3391
  • http://repository.usu.ac.id/handle/123456789/1592
  • http://repository.usu.ac.id/handle/123456789/1520
  • http://repository.usu.ac.id/handle/123456789/1558
  • http://repository.usu.ac.id/handle/123456789/1502
  • http://repository.usu.ac.id/handle/123456789/4766
  • http://repository.usu.ac.id/handle/123456789/5150
  • http://repository.usu.ac.id/handle/123456789/18213
  • http://repository.usu.ac.id/handle/123456789/1621
  • http://repository.usu.ac.id/handle/123456789/5151
  • http://repository.usu.ac.id/handle/123456789/1218
  • http://repository.usu.ac.id/handle/123456789/1609
  • http://repository.usu.ac.id/handle/123456789/5152
  • http://repository.usu.ac.id/handle/123456789/24068
  • http://repository.usu.ac.id/handle/123456789/5153
  • http://repository.usu.ac.id/handle/123456789/3933
  • http://repository.usu.ac.id/handle/123456789/5249
  • http://repository.usu.ac.id/handle/123456789/4907
  • http://repository.usu.ac.id/handle/123456789/903
  • http://repository.usu.ac.id/handle/123456789/5251
  • http://repository.usu.ac.id/handle/123456789/1044
  • http://repository.usu.ac.id/handle/123456789/18495
  • http://repository.usu.ac.id/handle/123456789/4914
  • http://repository.usu.ac.id/handle/123456789/17568
  • http://repository.usu.ac.id/handle/123456789/20456
  • http://repository.usu.ac.id/handle/123456789/1297
  • http://repository.usu.ac.id/handle/123456789/3473
  • http://repository.usu.ac.id/handle/123456789/877
  • http://repository.usu.ac.id/handle/123456789/17569
  • http://repository.usu.ac.id/handle/123456789/3474
  • http://repository.usu.ac.id/handle/123456789/4917
  • http://repository.usu.ac.id/handle/123456789/3476
  • http://repository.usu.ac.id/handle/123456789/5256
  • http://repository.usu.ac.id/handle/123456789/899
  • http://repository.usu.ac.id/handle/123456789/3478
  • http://repository.usu.ac.id/handle/123456789/4464
  • http://repository.usu.ac.id/handle/123456789/4465
  • http://repository.usu.ac.id/handle/123456789/17570
  • http://repository.usu.ac.id/handle/123456789/1036
  • http://repository.usu.ac.id/handle/123456789/4466
  • http://repository.usu.ac.id/handle/123456789/3482
  • http://repository.usu.ac.id/handle/123456789/18461
  • http://repository.usu.ac.id/handle/123456789/4467
  • http://repository.usu.ac.id/handle/123456789/5260
  • http://repository.usu.ac.id/handle/123456789/4469
  • http://repository.usu.ac.id/handle/123456789/3486
  • http://repository.usu.ac.id/handle/123456789/4470
  • http://repository.usu.ac.id/handle/123456789/3487
  • http://repository.usu.ac.id/handle/123456789/5261
  • http://repository.usu.ac.id/handle/123456789/3488
  • http://repository.usu.ac.id/handle/123456789/978
  • http://repository.usu.ac.id/handle/123456789/1273
  • http://repository.usu.ac.id/handle/123456789/3489
  • http://repository.usu.ac.id/handle/123456789/5262
  • http://repository.usu.ac.id/handle/123456789/5263
  • http://repository.usu.ac.id/handle/123456789/4927
  • http://repository.usu.ac.id/handle/123456789/900
  • http://repository.usu.ac.id/handle/123456789/3492
  • http://repository.usu.ac.id/handle/123456789/4928
  • http://repository.usu.ac.id/handle/123456789/17572
  • http://repository.usu.ac.id/handle/123456789/17566
  • http://repository.usu.ac.id/handle/123456789/26039
  • http://repository.usu.ac.id/handle/123456789/3496
  • http://repository.usu.ac.id/handle/123456789/3498
  • http://repository.usu.ac.id/handle/123456789/18459
  • http://repository.usu.ac.id/handle/123456789/3499
  • http://repository.usu.ac.id/handle/123456789/17573
  • http://repository.usu.ac.id/handle/123456789/22411
  • http://repository.usu.ac.id/handle/123456789/879
  • http://repository.usu.ac.id/handle/123456789/6219
  • http://repository.usu.ac.id/handle/123456789/914
  • http://repository.usu.ac.id/handle/123456789/4473
  • http://repository.usu.ac.id/handle/123456789/3503
  • http://repository.usu.ac.id/handle/123456789/3505
  • http://repository.usu.ac.id/handle/123456789/4475
  • http://repository.usu.ac.id/handle/123456789/3506
  • http://repository.usu.ac.id/handle/123456789/24070
  • http://repository.usu.ac.id/handle/123456789/24833
  • http://repository.usu.ac.id/handle/123456789/3509
  • http://repository.usu.ac.id/handle/123456789/4477
  • http://repository.usu.ac.id/handle/123456789/1745
  • http://repository.usu.ac.id/handle/123456789/25661
  • http://repository.usu.ac.id/handle/123456789/4479
  • http://repository.usu.ac.id/handle/123456789/25811
  • http://repository.usu.ac.id/handle/123456789/3516
  • http://repository.usu.ac.id/handle/123456789/26453
  • http://repository.usu.ac.id/handle/123456789/28630
  • http://repository.usu.ac.id/handle/123456789/1786
  • http://repository.usu.ac.id/handle/123456789/3519
  • http://repository.usu.ac.id/handle/123456789/3520
  • http://repository.usu.ac.id/handle/123456789/3493
  • http://repository.usu.ac.id/handle/123456789/3523
  • http://repository.usu.ac.id/handle/123456789/17263
  • http://repository.usu.ac.id/handle/123456789/3550
  • http://repository.usu.ac.id/handle/123456789/3527
  • http://repository.usu.ac.id/handle/123456789/1370
  • http://repository.usu.ac.id/handle/123456789/4485
  • http://repository.usu.ac.id/handle/123456789/3528
  • http://repository.usu.ac.id/handle/123456789/4486
  • http://repository.usu.ac.id/handle/123456789/7053
  • http://repository.usu.ac.id/handle/123456789/1676
  • http://repository.usu.ac.id/handle/123456789/4524
  • http://repository.usu.ac.id/handle/123456789/1675
  • http://repository.usu.ac.id/handle/123456789/6482
  • http://repository.usu.ac.id/handle/123456789/27358
  • http://repository.usu.ac.id/handle/123456789/1672
  • http://repository.usu.ac.id/handle/123456789/1673
  • http://repository.usu.ac.id/handle/123456789/1674
  • http://repository.usu.ac.id/handle/123456789/4424
  • http://repository.usu.ac.id/handle/123456789/930
  • http://repository.usu.ac.id/handle/123456789/1678
  • http://repository.usu.ac.id/handle/123456789/4527
  • http://repository.usu.ac.id/handle/123456789/1677
  • http://repository.usu.ac.id/handle/123456789/5306
  • http://repository.usu.ac.id/handle/123456789/4529
  • http://repository.usu.ac.id/handle/123456789/904
  • http://repository.usu.ac.id/handle/123456789/1820
  • http://repository.usu.ac.id/handle/123456789/5309
  • http://repository.usu.ac.id/handle/123456789/1781
  • http://repository.usu.ac.id/handle/123456789/1793
  • http://repository.usu.ac.id/handle/123456789/20154
  • http://repository.usu.ac.id/handle/123456789/4534
  • http://repository.usu.ac.id/handle/123456789/3585
  • http://repository.usu.ac.id/handle/123456789/1821
  • http://repository.usu.ac.id/handle/123456789/3586
  • http://repository.usu.ac.id/handle/123456789/4535
  • http://repository.usu.ac.id/handle/123456789/3587
  • http://repository.usu.ac.id/handle/123456789/4536
  • http://repository.usu.ac.id/handle/123456789/3590
  • http://repository.usu.ac.id/handle/123456789/4538
  • http://repository.usu.ac.id/handle/123456789/3593
  • http://repository.usu.ac.id/handle/123456789/4540
  • http://repository.usu.ac.id/handle/123456789/7057
  • http://repository.usu.ac.id/handle/123456789/3597
  • http://repository.usu.ac.id/handle/123456789/4541
  • http://repository.usu.ac.id/handle/123456789/3598
  • http://repository.usu.ac.id/handle/123456789/4543
  • http://repository.usu.ac.id/handle/123456789/5317
  • http://repository.usu.ac.id/handle/123456789/17585
  • http://repository.usu.ac.id/handle/123456789/19460
  • http://repository.usu.ac.id/handle/123456789/13495
  • http://repository.usu.ac.id/handle/123456789/17587
  • http://repository.usu.ac.id/handle/123456789/16106
  • http://repository.usu.ac.id/handle/123456789/16088
  • http://repository.usu.ac.id/handle/123456789/16094
  • http://repository.usu.ac.id/handle/123456789/15705
  • http://repository.usu.ac.id/handle/123456789/15552
  • http://repository.usu.ac.id/handle/123456789/16089
  • http://repository.usu.ac.id/handle/123456789/17588
  • http://repository.usu.ac.id/handle/123456789/17589
  • http://repository.usu.ac.id/handle/123456789/17592
  • http://repository.usu.ac.id/handle/123456789/17593
  • http://repository.usu.ac.id/handle/123456789/17616
  • http://repository.usu.ac.id/handle/123456789/17591
  • http://repository.usu.ac.id/handle/123456789/17598
  • http://repository.usu.ac.id/handle/123456789/19461
  • http://repository.usu.ac.id/handle/123456789/17595
  • http://repository.usu.ac.id/handle/123456789/19462
  • http://repository.usu.ac.id/handle/123456789/17602
  • http://repository.usu.ac.id/handle/123456789/17604
  • http://repository.usu.ac.id/handle/123456789/17605
  • http://repository.usu.ac.id/handle/123456789/17608
  • http://repository.usu.ac.id/handle/123456789/17603
  • http://repository.usu.ac.id/handle/123456789/19465
  • http://repository.usu.ac.id/handle/123456789/17612
  • http://repository.usu.ac.id/handle/123456789/17613
  • http://repository.usu.ac.id/handle/123456789/17617
  • http://repository.usu.ac.id/handle/123456789/17620
  • http://repository.usu.ac.id/handle/123456789/17621
  • http://repository.usu.ac.id/handle/123456789/17622
  • http://repository.usu.ac.id/handle/123456789/17624
  • http://repository.usu.ac.id/handle/123456789/17627
  • http://repository.usu.ac.id/handle/123456789/17628
  • http://repository.usu.ac.id/handle/123456789/17629
  • http://repository.usu.ac.id/handle/123456789/17630
  • http://repository.usu.ac.id/handle/123456789/17631
  • http://repository.usu.ac.id/handle/123456789/17633
  • http://repository.usu.ac.id/handle/123456789/17635
  • http://repository.usu.ac.id/handle/123456789/17714
  • http://repository.usu.ac.id/handle/123456789/17713
  • http://repository.usu.ac.id/handle/123456789/17712
  • http://repository.usu.ac.id/handle/123456789/17720
  • http://repository.usu.ac.id/handle/123456789/17724
  • http://repository.usu.ac.id/handle/123456789/17721
  • http://repository.usu.ac.id/handle/123456789/17719
  • http://repository.usu.ac.id/handle/123456789/17715
  • http://repository.usu.ac.id/handle/123456789/17728
  • http://repository.usu.ac.id/handle/123456789/6414
  • http://repository.usu.ac.id/handle/123456789/17738
  • http://repository.usu.ac.id/handle/123456789/6400
  • http://repository.usu.ac.id/handle/123456789/17731
  • http://repository.usu.ac.id/handle/123456789/17729
  • http://repository.usu.ac.id/handle/123456789/17751
  • http://repository.usu.ac.id/handle/123456789/17732
  • http://repository.usu.ac.id/handle/123456789/1885
  • http://repository.usu.ac.id/handle/123456789/17763
  • http://repository.usu.ac.id/handle/123456789/4592
  • http://repository.usu.ac.id/handle/123456789/3654
  • http://repository.usu.ac.id/handle/123456789/3655
  • http://repository.usu.ac.id/handle/123456789/4594
  • http://repository.usu.ac.id/handle/123456789/1882
  • http://repository.usu.ac.id/handle/123456789/1886
  • http://repository.usu.ac.id/handle/123456789/4597
  • http://repository.usu.ac.id/handle/123456789/4598
  • http://repository.usu.ac.id/handle/123456789/1896
  • http://repository.usu.ac.id/handle/123456789/4599
  • http://repository.usu.ac.id/handle/123456789/1897
  • http://repository.usu.ac.id/handle/123456789/5356
  • http://repository.usu.ac.id/handle/123456789/7072
  • http://repository.usu.ac.id/handle/123456789/4602
  • http://repository.usu.ac.id/handle/123456789/4603
  • http://repository.usu.ac.id/handle/123456789/7073
  • http://repository.usu.ac.id/handle/123456789/4605
  • http://repository.usu.ac.id/handle/123456789/1922
  • http://repository.usu.ac.id/handle/123456789/1924
  • http://repository.usu.ac.id/handle/123456789/4609
  • http://repository.usu.ac.id/handle/123456789/1928
  • http://repository.usu.ac.id/handle/123456789/1904
  • http://repository.usu.ac.id/handle/123456789/1930
  • http://repository.usu.ac.id/handle/123456789/4610
  • http://repository.usu.ac.id/handle/123456789/3657
  • http://repository.usu.ac.id/handle/123456789/3659
  • http://repository.usu.ac.id/handle/123456789/1906
  • http://repository.usu.ac.id/handle/123456789/4612
  • http://repository.usu.ac.id/handle/123456789/3660
  • http://repository.usu.ac.id/handle/123456789/1903
  • http://repository.usu.ac.id/handle/123456789/4615
  • http://repository.usu.ac.id/handle/123456789/1905
  • http://repository.usu.ac.id/handle/123456789/4613
  • http://repository.usu.ac.id/handle/123456789/17225
  • http://repository.usu.ac.id/handle/123456789/7076
  • http://repository.usu.ac.id/handle/123456789/1944
  • http://repository.usu.ac.id/handle/123456789/1993
  • http://repository.usu.ac.id/handle/123456789/1997
  • http://repository.usu.ac.id/handle/123456789/4622
  • http://repository.usu.ac.id/handle/123456789/1991
  • http://repository.usu.ac.id/handle/123456789/4624
  • http://repository.usu.ac.id/handle/123456789/1966
  • http://repository.usu.ac.id/handle/123456789/1992
  • http://repository.usu.ac.id/handle/123456789/4626
  • http://repository.usu.ac.id/handle/123456789/1979
  • http://repository.usu.ac.id/handle/123456789/4627
  • http://repository.usu.ac.id/handle/123456789/1942
  • http://repository.usu.ac.id/handle/123456789/4628
  • http://repository.usu.ac.id/handle/123456789/4629
  • http://repository.usu.ac.id/handle/123456789/1941
  • http://repository.usu.ac.id/handle/123456789/1956
  • http://repository.usu.ac.id/handle/123456789/1974
  • http://repository.usu.ac.id/handle/123456789/1999
  • http://repository.usu.ac.id/handle/123456789/3666
  • http://repository.usu.ac.id/handle/123456789/1964
  • http://repository.usu.ac.id/handle/123456789/3662
  • http://repository.usu.ac.id/handle/123456789/1981
  • http://repository.usu.ac.id/handle/123456789/3663
  • http://repository.usu.ac.id/handle/123456789/1951
  • http://repository.usu.ac.id/handle/123456789/1946
  • http://repository.usu.ac.id/handle/123456789/4078
  • http://repository.usu.ac.id/handle/123456789/1971
  • http://repository.usu.ac.id/handle/123456789/4633
  • http://repository.usu.ac.id/handle/123456789/3668
  • http://repository.usu.ac.id/handle/123456789/1952
  • http://repository.usu.ac.id/handle/123456789/4634
  • http://repository.usu.ac.id/handle/123456789/4085
  • http://repository.usu.ac.id/handle/123456789/1995
  • http://repository.usu.ac.id/handle/123456789/1972
  • http://repository.usu.ac.id/handle/123456789/3671
  • http://repository.usu.ac.id/handle/123456789/1949
  • http://repository.usu.ac.id/handle/123456789/7080
  • http://repository.usu.ac.id/handle/123456789/1996
  • http://repository.usu.ac.id/handle/123456789/1990
  • http://repository.usu.ac.id/handle/123456789/3673
  • http://repository.usu.ac.id/handle/123456789/17765
  • http://repository.usu.ac.id/handle/123456789/1962
  • http://repository.usu.ac.id/handle/123456789/1967
  • http://repository.usu.ac.id/handle/123456789/1969
  • http://repository.usu.ac.id/handle/123456789/3676
  • http://repository.usu.ac.id/handle/123456789/4638
  • http://repository.usu.ac.id/handle/123456789/1976
  • http://repository.usu.ac.id/handle/123456789/7081
  • http://repository.usu.ac.id/handle/123456789/1947
  • http://repository.usu.ac.id/handle/123456789/4089
  • http://repository.usu.ac.id/handle/123456789/3678
  • http://repository.usu.ac.id/handle/123456789/4639
  • http://repository.usu.ac.id/handle/123456789/1994
  • http://repository.usu.ac.id/handle/123456789/15690
  • http://repository.usu.ac.id/handle/123456789/15985
  • http://repository.usu.ac.id/handle/123456789/15160
  • http://repository.usu.ac.id/handle/123456789/17807
  • http://repository.usu.ac.id/handle/123456789/16004
  • http://repository.usu.ac.id/handle/123456789/16005
  • http://repository.usu.ac.id/handle/123456789/16006
  • http://repository.usu.ac.id/handle/123456789/13278
  • http://repository.usu.ac.id/handle/123456789/16007
  • http://repository.usu.ac.id/handle/123456789/16008
  • http://repository.usu.ac.id/handle/123456789/16009