edited by Roy Moodley, Stephen Palmer
Routledge, 2006
Buku Teks
Wheeler, Kathleen, 1947-
Springer Publishing Company, 2014
Buku Teks
edited by Joy Schaverien
Routledge, 2006
Buku Teks
Kottler, Jeffrey A.
Brunner-Routledge, 2002
Buku Teks
Brenner, Charles
Anchor Book, 1973
Buku Teks