첫마음
Subtitle: Yang Sŏng-u sijip
Edition: Chʻopʻan.
Publisher: Silchʻŏn Munhaksa
Published: 2000
Place of publication: Sŏul Tʻŭkpyŏlsi
Language: kor
Number of pages: 115
Other titles: Chʻŏt maŭm