Sweeney, Matthew, author
Boston Faber and Faber, 1992
Buku Teks
Kim, Yong-taek, author
Silcheon Moon Hak, 2005
Buku Teks
Mok, Il-sin, author
Mun Hak Dong Nea, 2003
Buku Teks
Gweon, O-sun, author
Mun Hak Dong Nea, 2003
Buku Teks
Ford Foundation, 2002
Buku Teks