Kyŏngjaeng ŏmnŭn kyosil en kyŏngjaengnyŏk i opta
Subtitle: 30-yŏnch'a sahoekwa kyosa ŭi kyosil paro seugi
Publisher: Paengnyŏn Tongan
Published: 2020
Place of publication: Sŏul
Language: kor
ISBN-13: 9791186061671