Nam-Pukhan kwallyŏn Hŏnggari wa Pulgaria ŭi oegyo munsŏ Tong Yurŏp i kirok han haebang chŏnhu ŭi Hanbando, 1945-1956 - I, Hui og 1942-; Kim, Po-guk (Tosŏ Ch'ulp'an Sŏnin, 2019)