New Jersey Hollym International Corp 2005
Buku Teks
Ryu, Je-hun, author
Hollym, 2000
Buku Teks
Lee, Kwang-kyu
Jimoondang, 2003
Buku Teks
Chang, Sun-yong, author
Ewha Womans University Press, 2006
Buku Teks
Seonggyun-gwan Daehakyo Chulpanbu, 2009
Buku Teks