Furnham, Adrian
Routledge, 1998
Buku Teks
Milburn, Michael A.
California Brooks/Cole Pub. , 1991
Buku Teks
edited by Peter Warr
Panguin Books, 1978
Buku Teks
Taylor, Shelley E.
Prentice-Hall, 1997
Buku Teks
Baron, Robert A.
Allyn and Bacon , 1997
Buku Teks