Tongŭi sinʼgyŏng chŏngsin kwahak
By: Kim Sang-hyo chŏ.
Publisher: Haengnim Chʻulpʻansa; chʻongpʻanchŏ, Haengnim Sŏwŏn
Published: 1980
Place of publication: Sŏul
Language: kor
Number of pages: 410