Ŏmma hago na hago
Subtitle: Yun Sŏk-chung tongyo tongsijip
By: kŭrim Chŏng Chun-yong.
Series: Ŏrini kŭl pat : Hanʼguk ŭi tongyo tongsi sirijŭ ; 001
Publisher: Sŏmundang
Published: 1979
Place of publication: Sŏul
Language: kor
Number of pages: 125