7 mari ŭi yŏmso
By: [chʻaegim pʻyŏnjip Kim Yo-sŏp].
Series: Chinŭng Kyebal kyoyuk sirijŭ ;; 15; Ŏrini tosŏgwan
Publisher: Samsŏngdang
Published: 1979
Place of publication: Sŏul Tʻuk̆pyŏlsi
Language: kor
Number of pages: 17