Books by Un-hong O
Han'guksa ŭi kijunchŏm ch'atki
Han'guksa ŭi kijunchŏm ch'atki
50-yŏn man e p'urŏnaen Muryŏng
50-yŏn man e p'urŏnaen Muryŏng Wangnŭng ŭi pimil
Hanbando e Paekche nŭn ŏpsŏtta
Hanbando e Paekche nŭn ŏpsŏtta
Kodaesa twijibŏ pogi
Kodaesa twijibŏ pogi
Taet'ongnim ch'upko pae kop'ay
Taet'ongnim ch'upko pae kop'ayo
P'yomyŏn kwa imyŏn ŭi yŏksa kŏ
P'yomyŏn kwa imyŏn ŭi yŏksa kŏsŭllŏ orŭda