Kyŏngyŏnghak yŏnsŭp
Subtitle: pu kaekkwansik munje mit haesŏl
By: So Chin-dŏk, Pak O-su, Chang Ik-hwan pʻyŏnjŏ.
Series: Kyŏngyŏnghak chʻongsŏ
Publisher: Seyŏngsa
Published: 1980
Place of publication: Sŏul Tʻukpyŏlsi
Language: kor