Ok pʻiri
Subtitle: chungpʻyŏn tonghwajip
By: [chŏja Kim Pang-mun, Kim Chae-wŏn]
Contributors: Kim, Chae-wŏn
Publisher: Kŭmsŏng Chʻŏngnyŏn Chʻulpʻansa
Published: 1987
Place of publication: [Pʻyŏngyang]
Language: kor
Number of pages: 231