• https://scholar.korea.ac.kr/handle/2021.sw.korea/258634
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258635
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258636
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258637
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258638
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258639
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258640
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258641
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258642
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258643
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258644
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258645
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258646
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258647
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258648
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258649
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258650
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258651
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258652
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258653
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258654
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258655
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258656
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258657
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258658
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258659
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258660
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258661
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258662
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258663
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258664
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258665
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258666
• https://scholar.korea.ac.kr/handle/2021.sw.korea/258667
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266980
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266981
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266982
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266983
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266984
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266985
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266986
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266987
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266988
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266989
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266990
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266991
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266992
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266993
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266994
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266995
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266996
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266997
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266998
• https://scholar.korea.ac.kr/handle/2021.sw.korea/266999
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267000
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267001
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267002
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267003
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267004
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267005
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267006
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267007
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267008
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267009
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267010
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267011
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267012
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267013
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267014
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267015
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267016
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267017
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267018
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267019
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267020
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267021
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267022
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267023
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267024
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267025
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267026
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267027
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267028
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267029
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267030
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267031
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267032
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267033
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267034
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267035
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267036
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267037
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267038
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267039
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267040
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267041
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267042
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267043
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267044
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267045
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267046
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267047
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267048
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267049
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267050
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267051
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267052
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267053
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267054
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267055
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267056
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267057
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267058
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267059
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267060
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267061
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267062
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267063
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267064
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267065
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267066
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267067
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267068
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267069
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267202
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267203
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267204
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267205
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267206
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267207
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267208
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267209
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267210
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267211
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267212
• https://scholar.korea.ac.kr/handle/2021.sw.korea/267213
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268466
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268467
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268468
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268469
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268470
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268471
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268472
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268473
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268474
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268475
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268476
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268477
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268478
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268479
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268480
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268481
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268482
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268483
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268484
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268485
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268486
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268487
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268488
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268489
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268490
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268491
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268492
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268493
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268494
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268495
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268496
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268497
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268498
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268499
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268500
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268501
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268502
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268503
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268504
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268505
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268506
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268507
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268508
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268509
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268510
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268511
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268512
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268513
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268514
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268515
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268516
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268517
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268518
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268519
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268520
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268521
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268522
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268523
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268524
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268525
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268526
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268527
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268528
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268529
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268530
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268531
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268532
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268533
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268534
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268535
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268536
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268537
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268538
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268539
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268540
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268541
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268542
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268543
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268544
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268545
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268546
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268547
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268548
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268549
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268550
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268551
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268552
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268553
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268554
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268555
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268556
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268557
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268558
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268559
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268560
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268561
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268562
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268563
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268564
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268565
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268566
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268567
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268568
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268569
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268570
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268571
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268572
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268573
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268574
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268575
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268965
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268966
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268967
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268968
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268969
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268970
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268971
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268972
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268973
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268974
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268975
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268976
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268977
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268978
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268979
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268980
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268981
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268982
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268983
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268984
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268985
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268986
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268987
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268988
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268989
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268990
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268991
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268992
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268993
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268994
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268995
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268996
• https://scholar.korea.ac.kr/handle/2021.sw.korea/268997
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269065
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269192
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269193
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269194
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269195
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269196
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269197
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269198
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269199
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269200
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269201
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269207
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269208
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269209
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269210
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269211
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269212
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269634
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269635
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269636
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269637
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269638
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269639
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269640
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269641
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269642
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269643
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269644
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269645
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269646
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269647
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269648
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269649
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269650
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269651
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269652
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269653
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269654
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269655
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269656
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269657
• https://scholar.korea.ac.kr/handle/2021.sw.korea/269658
• https://scholar.korea.ac.kr/handle/2021.sw.korea/253485
• https://scholar.korea.ac.kr/handle/2021.sw.korea/253486
• https://scholar.korea.ac.kr/handle/2021.sw.korea/253487
• https://scholar.korea.ac.kr/handle/2021.sw.korea/253488
• https://scholar.korea.ac.kr/handle/2021.sw.korea/253489
• https://scholar.korea.ac.kr/handle/2021.sw.korea/253490
• https://scholar.korea.ac.kr/handle/2021.sw.korea/253491
• https://scholar.korea.ac.kr/handle/2021.sw.korea/253492
• https://scholar.korea.ac.kr/handle/2021.sw.korea/253493
• https://scholar.korea.ac.kr/handle/2021.sw.korea/253494
• https://scholar.korea.ac.kr/handle/2021.sw.korea/253495
• https://scholar.korea.a