Robinson, Paul W.
Harper & Row, 1979
Buku Teks
Solso, Robert L., 1933-
Boston, 2002
Buku Teks
Myers, Anne
Wadsworth and Cengage Learning, 2012
Buku Teks
Robinson, Paul W.
Prentice-Hall, 1981
Buku Teks
McGuigan, F.J. (Frank J.), 1924-
Prentice-Hall, 1990
Buku Teks