Kil wo ui norae : Kim Si-sup sonjip

Jonggyo, kundae ui kil mutta : sakon uro pon Hanguk ui chongyosa / Kim Sang-ung

Uri mal ui tansaeng : choecho ui Kugo sajon mandulgi 50-yon ui yoksa = the birth of a Korean : the first dictionary of the language making 50 years

Chang Ha-jun, Hanguk kyongje kil ul mal hada : wigi ui Taehan Minguk, sangsaeng ui taean sahoejok tae tahyop

Han'gugo kyoyuk ui yon'gu