Chisik chaesan kiban ch'angjo kyŏngje kuhyŏn ŭl wihan t'ŭkhŏpŏp chŏnmyŏn kaejŏng pangan yŏn'gu T'ŭkhŏpŏp chŏnmyŏn kaejŏng pangan yŏn'gu - Kim, Tong-jun (Jinhan M&B, 2015)
Reprint. Originally published by T'ŭkhŏch'ŏng in 2014