http://db.history.go.kr/item/level.do?levelId=npda_1929_12_04_v0002_0340
http://db.history.go.kr/item/level.do?levelId=npda_1927_09_02_v0004_0850
http://db.history.go.kr/item/level.do?levelId=npda_1927_07_07_v0002_0370
http://db.history.go.kr/item/level.do?levelId=npda_1927_07_05_v0002_0350
http://db.history.go.kr/item/level.do?levelId=npda_1927_07_03_v0002_0360
http://db.history.go.kr/item/level.do?levelId=npda_1927_07_02_v0005_1240