Yong-hŭi Chi

• Chungguk ŭi kyŏngje hwanʼgyŏng kwa Hanʼguk kiŏp ŭi chinchʻul chŏllyak
• Chungso kiŏp ŭi kukchehwa chŏllyak
• Kyŏngje chŏnjaeng sidae Yi Sun-sin ŭl mannada