http://db.history.go.kr/item/level.do?levelId=npda_1925_04_11_v0003_0580
https://nl.go.kr/newspaper/detail.do?content_id=CNTS-00093859948&from=%EC%8B%A0%EB%AC%B8%20%EA%B2%80%EC%83%89
http://db.history.go.kr/item/level.do?levelId=npda_1924_03_25_v0003_0670