Sŏngdo
Subtitle: hanŭl kwa pyŏl ŭi segye
By: Na Il-sŏng chŏ.
Publisher: Tŭkpyŏlsi; Yŏnse Taehakkyo, Chʻulpʻanbu
Published: 1979
Place of publication: Sŏul
Language: kor
Number of pages: 54