http://db.history.go.kr/item/level.do?levelId=npda_1948_05_19_x005F0040
http://db.history.go.kr/item/level.do?levelId=npda_1946_04_23_x005F0110
http://db.history.go.kr/item/level.do?levelId=npda_1946_04_23_x005F0180