Fisher, James Earnest
Yonsei University Press, 1970
Buku Teks
Ministry of Education and National Commission for Unesco, 1962
Buku Teks
Choi, Wan Gee, author
Ewha Womans University Press, 2006
Buku Teks
Choi, Wan Gee, author
Ewha Womans University Press, 2005
Buku Teks
Kuk, Bom Shin
1976
Buku Teks