니환즈
By: Yŏp Sŏng-to
Edition: Che 2-pʻan.
Publisher: Minjok Chʻulpʻansa
Published: 1980
Place of publication: Peking
Language: kor
Number of pages: 364
Other titles: Ni Hwan-jŭ
Work titles: Ni Huan-chih