Kalat, James W.
Wadsorth , 2001
Buku Teks
Fernald, L. Dodge
Houghton Miffiln, 1978
Buku Teks
Rita L. Atkinson ... [et al.]
Harcourt Brace College, 1993
Buku Teks
by Clifford T. Morgan [and others]
McGraw-Hill, 1986
Buku Teks
Kagan, Jerome
Harcourt Brace Jovanovich, 1972
Buku Teks