https://www.nl.go.kr/newspaper/detail.do?content_id=CNTS-00094843352&from=%EC%8B%A0%EB%AC%B8%20%EA%B2%80%EC%83%89
http://db.history.go.kr/item/level.do?levelId=npda_1959_10_30_w0003_0370
http://db.history.go.kr/item/level.do?levelId=npda_1959_07_07_w0003_0380