• https://scholar.korea.ac.kr/handle/2021.sw.korea/179438
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179439
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179440
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179441
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179442
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179443
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179444
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179445
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179446
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179447
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179448
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179449
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179450
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179451
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179452
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179453
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179454
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179455
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179456
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179457
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179458
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179459
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179460
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179461
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179462
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179463
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179464
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179465
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179466
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179467
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179468
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179469
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179470
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179471
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179472
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179473
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179474
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179475
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179476
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179477
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179478
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179479
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179480
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179481
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179482
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179483
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179484
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179485
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179486
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179487
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179488
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179489
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179490
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179491
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179492
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179493
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179494
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179495
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179496
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179497
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179498
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179499
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179500
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179501
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179502
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179503
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179504
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179505
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179506
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179507
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179508
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179509
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179510
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179511
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179512
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179513
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179514
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179515
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179516
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179517
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179518
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179519
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179520
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179521
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179522
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179523
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179524
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179525
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179526
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179527
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179528
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179529
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179530
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179531
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179532
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179533
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179534
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179535
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179536
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179537
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179538
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179539
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179540
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179541
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179542
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179543
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179544
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179545
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179546
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179547
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179548
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179549
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179550
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179551
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179552
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179553
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179554
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179555
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179556
• https://scholar.korea.ac.kr/handle/2021.sw.korea/179557
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197067
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197068
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197069
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197070
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197071
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197072
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197073
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197074
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197075
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197076
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197077
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197078
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197079
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197080
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197081
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197082
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197083
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197084
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197085
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197086
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197087
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197088
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197089
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197090
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197091
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197092
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197093
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197094
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197095
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197096
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197097
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197098
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197099
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197100
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197101
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197102
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197103
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197104
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197105
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197106
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197107
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197108
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197109
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197110
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197111
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197112
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197113
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197114
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197115
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197116
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197117
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197118
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197119
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197120
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197121
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197122
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197123
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197124
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197125
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197126
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197127
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197128
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197129
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197130
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197131
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197132
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197133
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197134
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197135
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197136
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197137
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197138
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197139
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197140
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197141
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197142
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197143
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197144
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197145
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197146
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197147
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197148
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197149
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197150
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197151
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197152
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197153
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197154
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197155
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197156
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197157
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197158
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197159
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197160
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197161
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197162
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197163
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197164
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197165
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197166
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197167
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197168
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197169
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197170
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197171
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197172
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197173
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197174
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197175
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197176
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197177
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197178
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197179
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197180
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197181
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197182
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197183
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197184
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197185
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197186
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197187
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197188
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197189
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197190
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197191
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197192
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197193
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197194
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197195
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197196
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197197
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197198
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197199
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197200
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197201
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197202
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197203
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197204
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197205
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197206
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197207
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197208
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197209
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197210
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197211
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197212
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197213
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197214
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197215
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197216
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197217
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197218
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197219
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197220
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197221
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197222
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197223
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197224
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197225
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197226
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197227
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197228
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197229
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197230
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197231
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197232
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197233
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197234
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197235
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197236
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197237
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197238
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197239
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197240
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197241
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197242
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197243
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197244
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197245
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197246
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197247
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197248
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197249
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197250
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197251
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197252
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197253
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197254
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197255
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197256
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197257
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197258
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197259
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197260
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197261
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197262
• https://scholar.korea.ac.kr/handle/2021.sw.korea/197263
• https://scholar.korea.ac.kr/handle/2021.sw.korea/194913
• https://scholar.korea.ac.kr/handle/2021.sw.korea/194914
• https://scholar.korea.ac.kr/handle/2021.sw.korea/194915
• https://scholar.korea.ac.kr/handle/2021.sw.korea/194916
• https://scholar.korea.ac.kr/handle/2021.sw.korea/194917
• https://scholar.korea.ac.kr/handle/2021.sw.korea/194918
• https://scholar.korea.ac.kr/handle/2021.sw.korea/194919
• https://scholar.korea.ac.kr/handle/2021.sw.korea/194920
• https://scholar.korea.ac.kr/handle/2021.sw.korea/194921
• https://scholar.korea.ac.kr/handle/2021.sw.korea/194922
• https://scholar.korea.ac.kr/handle/2021.sw.korea/194923
• https://scholar.korea.ac.kr/handle/2021.sw.korea/194924
• https://scholar.korea.ac.kr/handle/2021.sw.korea/194925
• https://scholar.korea.ac.kr/handle/2021.sw.korea/194926
• https://scholar.korea.ac.kr/handle/2021.sw.korea/194927
• https://scholar.korea.a