• https://scholar.korea.ac.kr/handle/2021.sw.korea/134218
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143341
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143342
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143343
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143344
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143345
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143346
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143347
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143348
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143349
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143350
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143351
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143352
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143353
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143354
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143355
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143356
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143357
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143358
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143359
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143360
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143361
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143362
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143363
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143364
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143370
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143371
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143372
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143373
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143374
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143395
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143396
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143397
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143398
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143399
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143420
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143421
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143422
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143423
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143424
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143425
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143426
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143427
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143428
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143429
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143480
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143481
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143482
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143483
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143484
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143485
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143486
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143487
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143489
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143512
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143513
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143514
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143515
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143517
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143518
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143519
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143520
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143521
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143522
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143523
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143524
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143525
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143526
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143532
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143533
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143534
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143535
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143537
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143538
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143540
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143567
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143568
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143569
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143571
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143572
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143573
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143574
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143575
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143576
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143589
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143590
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143591
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143592
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143593
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143625
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143626
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143649
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143650
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143651
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143652
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143653
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143654
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143655
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143656
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143657
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143658
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143659
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143660
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143661
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143662
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143663
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143664
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143665
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143666
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143667
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143668
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143669
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143670
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143671
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143672
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143673
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143674
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143675
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143676
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143677
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143678
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143710
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143711
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143712
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143713
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143714
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143715
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143716
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143717
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143718
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143719
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143720
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143721
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143737
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143738
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143739
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143740
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143741
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143795
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143796
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143797
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143798
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143809
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143810
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143811
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143812
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143813
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143814
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143815
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143816
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143817
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143818
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143998
• https://scholar.korea.ac.kr/handle/2021.sw.korea/143999
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144000
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144001
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144002
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144003
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144004
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144005
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144006
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144007
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144008
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144009
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144010
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144011
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144012
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144013
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144014
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144025
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144026
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144027
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144028
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144029
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144030
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144031
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144032
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144033
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144034
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144045
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144046
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144047
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144048
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144120
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144121
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144122
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144123
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144125
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144126
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144127
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144128
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131055
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131056
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131057
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131058
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131059
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131060
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131061
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131062
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131063
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131064
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131066
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131067
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131068
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131069
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131070
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131071
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131072
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131073
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131074
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131075
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131076
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131077
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131078
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131079
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131080
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131081
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131082
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131083
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131084
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131085
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131086
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131087
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131088
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131089
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131090
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131091
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131092
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131093
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131094
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131095
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131097
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131098
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131099
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131100
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131101
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131102
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131103
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131104
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131105
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131106
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131107
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131108
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131109
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131110
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131111
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131112
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131113
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131114
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131115
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131116
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131117
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131118
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131119
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131120
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131121
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131122
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131123
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131124
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131125
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131126
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131127
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131128
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131129
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131130
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131131
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131132
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144218
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131134
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131135
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131136
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131137
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131138
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131139
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131140
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131141
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131142
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131143
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131144
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131145
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131146
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131147
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131148
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131149
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131150
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144277
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131152
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131153
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131154
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131155
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131156
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131157
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131159
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131160
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131161
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131162
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131163
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131164
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131165
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131166
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131167
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131168
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131169
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131170
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131171
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131172
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131173
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131174
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131175
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131176
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131177
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131178
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131179
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131180
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131181
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131182
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131183
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131184
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131185
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131186
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131187
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131188
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131189
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131190
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131191
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131192
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131193
• https://scholar.korea.ac.kr/handle/2021.sw.korea/131194
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144217
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144278
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144279
• https://scholar.korea.ac.kr/handle/2021.sw.korea/144280
• https://scholar.korea.a