Chosŏnŏ chŏnja sajŏn yŏngu /

by Yi, Sŭng-gil, Yi, Sŭng-gil
Published 2005

Ŏnŏhak yŏn'gu nonmunjip

by Yi, Sŭng-gil, O, Ch'ŏl-man
Published 2010

Chosŏnŏ munpŏp kŏmsa yŏn'gu /

by Yi, Sŭng-gil, Yi, Sŭng-gil
Published 2005

Munhwaŏ parŭm sangsik /

by Yi, Sŭng-gil, Yi, Sŭng-gil, Yi, Sŭng-gil, Yi, Sŭng-gil, Yi, Sŭng-gil, Ch'oe, Kwang-hun, Ch'oe, Kwang-hun, Ch'oe, Kwang-hun
Published 2015

Munhwaŏ parŭm sajŏn /

by Yi, Sŭng-gil, Yi, Sŭng-gil, Yi, Sŭng-gil, Kim, Sŏng-gŭn, Kim, Sŏng-gŭn, Hong, Sŏk-hŭi, Hong, Sŏk-hŭi, Ch'oe, Kwang-hun, Ch'oe, Kwang-hun
Published 2014