• https://scholar.korea.ac.kr/handle/2021.sw.korea/263922
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263923
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263924
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263925
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263926
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263927
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263928
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263929
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263930
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263931
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263932
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263933
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263934
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263935
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263936
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263937
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263938
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263939
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263940
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263941
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263942
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263943
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263944
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263945
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263946
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263947
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263948
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263949
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263950
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263951
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263952
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263953
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263954
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263955
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263956
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263957
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263958
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263959
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263960
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263961
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263962
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263963
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263964
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263965
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263966
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263967
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263968
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263969
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263970
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263971
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263972
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263973
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263974
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263975
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263976
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263977
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263978
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263979
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263980
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263981
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263982
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263983
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263984
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263985
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263986
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263987
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263988
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263989
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263990
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263991
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263992
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263993
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263994
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263995
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263996
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263997
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263998
• https://scholar.korea.ac.kr/handle/2021.sw.korea/263999
• https://scholar.korea.ac.kr/handle/2021.sw.korea/264000
• https://scholar.korea.ac.kr/handle/2021.sw.korea/264001
• https://scholar.korea.ac.kr/handle/2021.sw.korea/264002
• https://scholar.korea.ac.kr/handle/2021.sw.korea/264003
• https://scholar.korea.ac.kr/handle/2021.sw.korea/264004
• https://scholar.korea.ac.kr/handle/2021.sw.korea/264005
• https://scholar.korea.ac.kr/handle/2021.sw.korea/264006
• https://scholar.korea.ac.kr/handle/2021.sw.korea/264007
• https://scholar.korea.ac.kr/handle/2021.sw.korea/264008
• https://scholar.korea.ac.kr/handle/2021.sw.korea/264009
• https://scholar.korea.ac.kr/handle/2021.sw.korea/264010
• https://scholar.korea.ac.kr/handle/2021.sw.korea/264011
• https://scholar.korea.ac.kr/handle/2021.sw.korea/264012
• https://scholar.korea.ac.kr/handle/2021.sw.korea/264013
• https://scholar.korea.ac.kr/handle/2021.sw.korea/264014
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267392
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267393
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267394
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267395
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267396
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267397
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267398
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267399
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267400
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267401
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267402
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267403
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267404
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267405
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267406
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267407
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267408
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267409
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267410
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267411
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267412
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267413
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267414
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267415
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267416
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267417
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267418
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267419
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267420
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267421
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267422
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267423
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267424
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267425
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267426
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267427
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267428
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267429
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267430
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267431
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267432
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267433
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267434
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267435
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267436
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267437
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267438
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267439
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267440
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267441
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267442
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267443
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267444
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267445
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267446
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267447
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267448
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267449
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267450
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267451
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267452
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267453
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267454
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267455
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267456
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267457
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267458
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267459
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267460
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267461
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267462
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267463
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267464
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267465
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267466
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267467
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267468
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267469
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267470
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267471
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267472
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267473
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267474
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267475
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267476
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267477
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267478
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267479
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267480
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267481
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267482
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267483
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267484
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267485
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267486
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267487
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267488
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267489
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267490
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267491
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267492
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267493
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267494
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267495
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267496
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267497
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267498
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267499
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267500
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267501
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267502
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267503
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267504
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267505
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267506
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267507
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267508
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267509
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267510
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267511
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267512
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267513
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267514
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267515
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267516
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267517
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267518
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267519
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267520
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267521
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267522
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267523
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268078
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268079
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268080
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268358
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268359
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268360
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268361
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268362
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268363
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268364
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268365
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268366
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268367
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268368
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268369
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268370
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268371
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268372
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268373
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268374
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268375
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268376
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268377
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268378
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268379
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268380
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268381
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268382
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268383
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268384
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268385
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268386
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268387
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268388
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268389
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268390
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268391
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268392
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268393
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268394
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268395
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268396
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268397
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268398
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268399
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268400
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268401
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268402
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268403
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268404
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268405
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268406
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268407
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268408
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268409
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268410
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268411
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268412
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268413
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268414
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268415
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268416
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268417
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268418
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268419
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255143
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255144
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255145
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255146
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255147
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255148
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255149
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255150
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255151
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255152
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255153
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255154
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255155
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255156
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255157
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255158
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255159
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255160
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255161
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255162
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255163
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255164
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255165
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255166
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255167
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255168
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255169
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255170
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255171
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255172
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255173
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255174
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255175
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255176
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255177
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255178
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255179
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255180
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255181
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255182
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255183
• https://scholar.korea.ac.kr/handle/2021.sw.korea/255184
• https://scholar.korea.a