Haengdong yŏnʼgu
Subtitle: iron, chŏlchʻa, sŏlgye mit pogosŏ chaksŏng
By: Ko Hŭng-hwa, Kim Hyŏng-il pʻyŏnjŏ.
Contributors: Kim, Hyŏng-il.
Edition: Chʻopʻan
Series: Simnihak chʻongsŏ
Publisher: Pŏmmunsa
Published: 1990
Place of publication: Sŏul-si
Language: kor
Number of pages: 690