Kongŏp kyŏngyŏnghak wŏllon
By: Kim Sang-han, Chŏng Chʻung-yŏng kongjŏ.
Publisher: Pagyŏngsa
Published: 1980
Place of publication: Sŏul Tʻŭkpyŏlsi
Language: kor
Number of pages: 558