Kŏin Ch'ŏn Kwan-uCh'ŏn Kwan-u Sŏnsaeng Ch'umo Munjip Kanhaeng Wiwŏnhoe · First published 2011Open the Tome
Chʻŏn Kwan-u Sŏnsaeng hwallyŏk kinyŏm Hanʼguk sahak nonchʻongKwan-u Ch'ŏn · First published 1985Open the Tome