Changgi ŭi myosu
Subtitle: myosu chung ŭi myosu pʻuri
By: Kim Chi-hwan chŏ
Edition: Chʻopʻan
Publisher: Usŏng Chʻulpʻansa
Published: 1991
Place of publication: Sŏul
Language: kor
Number of pages: 266
Subjects: Changgi problems