Gong, Sun-ok
Asia, 2014
Buku Teks
Kim, Chong Kwang
Asia, 2014
Buku Teks
Jung, Mi-kyung
Asia, 2014
Buku Teks
Kim, Joo-yong
Asia, 2014
Buku Teks
translated and edited with an introduction by Kim Chong-un
Seoul National University Press, 1983
Buku Teks SO