Christopher B Roberts; Christopher B Roberts; Ahmad D Habir; Leonard C Sebastian, editor
Palgrave Macmillan, 2015
Buku Teks
Meyer, Marc H., author
Free Press, 1997
Buku Teks
James Henri
Libraries Unlimited, 2005
Buku Teks
Lip, Evelyn, author
Academy Editions, 1995
Buku Teks
Osgood, Cornelius
The University of Arizona Press, 1975
Buku Teks