Chʻi-yŏng An

• Chungganyŏp chulgi sepʻo ŭi pʻumjil pʻyŏngka kijun e kwanhan yŏnʼgu
• Sepʻo chojik konghak cheje ŭi piimsang, imsang pʻyŏngka sarye punsŏk yŏnʼgu =