Kim Chŏng-ŭn sidae Pukhan ŭl ponŭn 10-kaji sigakYi, Chong-ju (Researcher on North Korea) · First published 2019Open the Tome
T'aja ŭi ch'ŏrhak kwa simnihakYi, Chong-ju (Lecturer in philosophy) · First published 2015Open the Tome
