Sunʼgyŏl, sŏng kyoyuk
Subtitle: che 2-chʻa sŏngjing
By: Ko Ki-un.
Edition: Chʻopʻan
Publisher: Chungang Kyoyuk Sŏgwan
Published: 1981
Place of publication: Sŏul
Language: kor
Number of pages: 355
Subjects: Sex instruction for youth