Kyoyuk muyong
Subtitle: yuchʻiwŏn chʻojung kokyo muyong kyoyuk chido charyo
By: Pak Sŭng-wŏn, Yu Kyŏng-hwa, Hŏ Sun-sŏn kongjŏ.
Publisher: Pojinje
Published: 1981
Place of publication: Sŏul Tʻŭkpyŏlsi
Language: kor
Number of pages: 251