Sang-gŭm Yi

• Hanʼguk kundae yuchʻiwŏn kyoyuksa
• Pantchok ŭi kohyang
• Sanŏp yong sŏmyu ŭi hyŏnhwang kwa yuksŏng panghyang
• Sarang ŭi sŏnmul
• Yua munhangnon