Ch'ŏr-yŏng Mun

• Chŏng To-jŏn yŏn'gu nonjŏ mongnok
• In'gan Chŏng To-jŏn
• Minjok yulli ŭi iron kwa silche, (ilmyŏng, Minjok yulli tokpon
• Yi Mae-bang p'yŏngjŏn