Kyŏngje tʻoron.
Series: Kyŏngje tʻoron sirijŭ -- 7
Publisher: Chŏnʼguk Kyŏngjein Yŏnhaphoe Kyŏngje, Kisul Chosa Sentʻŏ; Sŏul Kyŏngje Sinmunsa
Published: 1979
Place of publication: Sŏul Tʻŭkpyŏlsi
Language: kor
Number of pages: 225