Title: Paekku ya hwŏrhwŏl nalji mara
Authors: Ha, Chae-yŏng.; Chŏng, Chin-u.; Han, Sang-ho.; Yu, yŏng-mu.; Song, Kir-han.; Na, Yŏng-hŭi.; Sin, Sŏng-il.; Sŭpʻektʻŭrŏm Divŭidi chu.
Publisher: Sŭpʻektʻŭrŏm Divŭidi,
Year: 2003