Andrain, Charles F.
Macmillan, 1995
Buku Teks
edited by George W. Albel, Justin M. Joffe and Linda A. Dusenbury
Sage, 1988
Buku Teks
Prentice-Hall, 1973
Buku Teks
Moore, Wilbert E. (Wilbert Ellis)
Prentice-Hall, 1963
Buku Teks
edited by Robert A. Nisbet
Blackwell, 1972
Buku Teks