Chong, Seong-mo, author
Ewha Womans University Press, 2006
Buku Teks
Madura, Jeff, author
South-Western, 2010
Buku Teks
Bailey, R.E., author
Cambridge University Press, 2005
Buku Teks
Ball, Michael
Buku Teks
Boyes, William, author
South Western Cengage Learning, 2012
Buku Teks