Bennett, Paul, author
Open University Press, 2003
Buku Teks
editor-in-chief, Thomas J. Boll ; volume editors, Suzanne Bennett Johnson, Nathan W. Perry, Jr., and Ronald H. Rozensky
American Psychological, 2004
Buku Teks
Illinois, 1983
Buku Teks
Matthews, Janet R.
Allyn and Bacon, 1997
Buku Teks
Wiley Periodicals, Inc, 2004
Majalah, Jurnal, Buletin