Yŏkchu Sohyŏn Simyang ilgi. [Yŏkchu] Sohyŏn Ŭllyu tonggung ilgiChong-su Kim · First published 2008Open the Tome
Yet hangul ui umjol chosa yongu (Chulpan yongu chongso)Kim, Chong-su. · First published 1994Open the Tome
Inmaek yutong ottoke halkot inga: Maketing kaehyok un taese idaKim, Chong-su. · First published 1993Open the Tome