Weiten, Wayne, author
Wadsworth and Cengage Learning, 2013
Buku Teks
Weiten, Wayne, author
Thomson/Wadsworth, 2008
Buku Teks
Santrock, John W.
McGraw-Hill, 2003
Multimedia
Baron, Robert A., author
Simon & Schuster, 1992
Buku Teks
Gray, Peter, author
Worth Publishers, 1999
Buku Teks