Choguk ŭi pʻyŏnghwajŏk tʻongil ŭl wihan uri tang ŭi pangch'im
Publisher: Chosŏn T'ongil Minjujuŭi Chŏnsŏn Chungang Wiwŏnhoe
Published: 2010
Place of publication: P'yŏngyang
Language: kor