Wrightsman, Lawrence S.
Wadsworth/Thomson Learning, 2001
Buku Teks SO
Arrigo, Bruce A.
San diego, 2003
Buku Teks SO
edited by Elena L. Grigorenko
Springer, 2012
eBooks
edited by Grover Maurice Godwin
CRC Press, 2001
Buku Teks
BPS Blackwell, 2012
Buku Teks SO