Hanʼguk kwahak kisul 30-yŏnsa
By: [parhaeng kyŏm pʻyŏnjibin Hanʼguk Kwahak Kisul Tanchʻe Chʻong Yŏnhaphoe].
Publisher: Tong Yŏnhaphoe
Published: 1980
Place of publication: Sŏul Tʻŭkpyŏlsi
Language: kor
Number of pages: 428