Chugŭm i uril kalla noŭl chirado
By: Im Sang-jin
Edition: Chʻopʻan
Series: Kyŏngun sisŏn -- 1
Publisher: Kyŏngun Chʻulpʻansa
Published: 1987
Place of publication: Sŏul Tʻŭkpyŏlsi
Language: kor
Number of pages: 116