• https://scholar.korea.ac.kr/handle/2021.sw.korea/177075
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177076
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177077
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177078
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177079
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177080
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177081
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177082
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177083
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177084
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177085
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177086
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177087
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177088
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177089
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177090
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177091
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177092
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177093
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177094
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177095
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177096
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177097
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177098
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177099
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177100
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177101
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177102
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177103
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177104
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177105
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177106
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177107
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177108
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177109
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177110
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177111
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177112
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177113
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177114
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177115
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177116
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177117
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177118
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177119
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177120
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177121
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177122
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177123
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177124
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177125
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177126
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177127
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177128
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177129
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177130
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177131
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177132
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177133
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177134
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177135
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177136
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177137
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177138
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177139
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177140
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177141
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177142
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177143
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177144
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177145
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177146
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177147
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177148
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177149
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177150
• https://scholar.korea.ac.kr/handle/2021.sw.korea/177151
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172589
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172590
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172591
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172592
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172593
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172594
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172595
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172596
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172597
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172598
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172599
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172600
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172601
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172602
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172603
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172604
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172605
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172606
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172607
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172608
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172609
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172610
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172611
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172612
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172613
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172614
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172615
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172616
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172617
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172618
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172619
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172620
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172621
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172622
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172623
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172624
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172625
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172626
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172627
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172628
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172629
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172630
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172631
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172632
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172633
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172634
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172635
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172636
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172637
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172638
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172639
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172640
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172641
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172642
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172643
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172644
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172645
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172646
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172647
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172648
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172649
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172650
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172651
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172652
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172653
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172654
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172655
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172656
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172657
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172658
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172659
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172660
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172661
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172662
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172663
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172664
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172665
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172666
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172667
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172668
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172669
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172670
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172671
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172672
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172673
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172674
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172675
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172676
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172677
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172678
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172679
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172680
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172681
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172682
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172683
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172684
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172685
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172686
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172687
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172688
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172689
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172690
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172691
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172692
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172693
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172694
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172695
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172696
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172697
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172698
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172699
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172700
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172701
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172702
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172703
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172704
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172705
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172706
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172707
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172708
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172709
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172710
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172711
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172712
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172713
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172714
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172715
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172716
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172717
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172718
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172719
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172720
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172721
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172722
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172723
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172724
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172725
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172726
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172727
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172728
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172729
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172730
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172731
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172732
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172733
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172734
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172735
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172736
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172737
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172738
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172739
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172740
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172741
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172742
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172743
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172744
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172745
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172746
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172747
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172748
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172749
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172750
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172751
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172752
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172753
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172754
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172755
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172756
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172757
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172758
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172759
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172760
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172761
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172762
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172763
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172764
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172765
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172766
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172767
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172768
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172769
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172770
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172771
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172772
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172773
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172774
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172775
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172776
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172777
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172778
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172779
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172780
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172781
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172782
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172783
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172784
• https://scholar.korea.ac.kr/handle/2021.sw.korea/172785
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153713
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153714
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153715
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153716
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153717
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153718
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153719
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153720
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153721
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153722
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153723
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153724
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153725
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153726
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153727
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153728
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153729
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153730
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153731
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153732
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153733
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153734
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153735
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153736
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153737
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153738
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153739
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153740
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153741
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153742
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153743
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153744
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153745
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153746
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153747
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153748
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153749
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153750
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153751
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153752
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153753
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153754
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153755
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153756
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153757
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153758
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153759
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153760
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153761
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153762
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153763
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153764
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153765
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153766
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153767
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153768
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153769
• https://scholar.korea.ac.kr/handle/2021.sw.korea/153770
• https://scholar.korea.a