Encyclopedia of Daily LifeRobert E. Buswell, Michael J. Pettid, Kil Cha · First published 2021Open the Tome
Advancement of women in science and technologyKil-cha Chŏn, Kye-Woo Lee · First published 2006Open the Tome
Kyubang kasa ŭi sajŏk chŏnʾgae wa yŏsŏng ŭisik ŭi pyŏnmoKil-cha Chŏng · First published 2005Open the Tome
Inchʻŏn kwa Chungguk ŭi kyŏngje kyoryu pʻyŏngka mit chŏnmangKil-cha Chŏng · First published 2003Open the Tome
