Carlson, Neil R., author
[publisher not identified], 1997
Buku Teks
Scott Lilienfeld ... [and others]
Pearson, 2009
Buku Teks
Gobet, Fernand, author
McGraw-Hill , 2011
Buku Teks
Barlow, David H., author
Wadsworth and Cengage Learning, 2012
Buku Teks
Blackwell Publishing Limited, 2001
Majalah, Jurnal, Buletin