이상한 수수께끼 장편동화
By: Hwng, Yong-a .
Publisher: Kŭmsŏng Ch'ŏngnyŏn Ch'ulp'ansa
Published: 2012
Place of publication: P'yŏngyang
Language: kor
Other titles: Isanghan susukkekki changp'yŏn tonghwa