Hanʾguk kŭndaesa e issŏsŏ ŭi Tonghak kwa Tonghak nongmin undongKang-o Yi · First published 1994Open the Tome
Koch'ang chibang munhwajae chip'yo chosa pogosŏKang-o Yi, Kyŏng-mok Chŏn · First published 1984Open the Tome
Sunchʻang chibang ŭi chŏntʻong munhwa kaebal ŭl wihan yŏnʼguKang-o Yi · First published 1982Open the Tome
