https://nl.go.kr/newspaper/detail.do?content_id=CNTS-00094512102&from=%EC%8B%A0%EB%AC%B8%20%EA%B2%80%EC%83%89
https://www.nl.go.kr/newspaper/detail.do?content_id=CNTS-00094263836&from=%EC%8B%A0%EB%AC%B8%20%EA%B2%80%EC%83%89
http://db.history.go.kr/item/level.do?levelId=npda_1932_10_17_v0003_0460