Se-sŏp O

• Ch'ŏngsonyŏn yŏnghwa kyosu haksŭp pangbŏp
• Ch'ŏngsonyŏn yŏnghwa kyoyuk ŭi ihae
• Chombi yŏnghwa
• Kongp'o yŏnghwa, Han'guk sahoe ŭi kŏul