Koguryo kobun pyokhwa yongu (Uri munhwa yesullon ui songujadul)Kim, Yong-jun · First published 2001Open the Tome
Sae Kunwon supil (Uri munhwa yesullon ui songujadul)Kim, Yong-jun · First published 2001Open the Tome
Chungguk ŭi kyŏngje kaehyŏk kwa Hanʾguk kiŏp ŭi chinchʻul chŏllyakYong-jun Kim · First published 2000Open the Tome
Kukka taegi oyŏm mulchil paechʻurwŏn charyo chʻegye kuchʻuk e kwanhan yŏnʼgu IYong-jun Kim · First published 1994Open the Tome