Coon, Dennis
Wardsworth, 2012
Buku Teks
Myers, David G.
Worth Publishers, 2001
Buku Teks SO
Brannigan, Gary G.
Prentice-Hall, 2000
Buku Teks SO
Rita L. Atkinson ... [et al.]
Harcourt Brace College, 1993
Buku Teks SO
Kalat, James W.
Wadsorth , 2001
Buku Teks