Kim, Jong-sob, author
Kyeonghwedehakkyo, 2007
Buku Teks
Wu, Hyong-sik, author
Language Plus, 2007
Buku Teks
Kim, Joong Seob, author
Kyeonghwedehakkyo, 2007
Buku Teks
Kim, Joong Soeb, author
Kyeonghwedehakkyo, 2006
Buku Teks
Kim, Jung-sup, author
Kyung Hee University Press, 2005
Buku Teks