Crow, Lestar D., author
Nur Cahya, 2005
Buku Teks
Santrock, John W., author
Kencana, 2007
Buku Teks
Woolfolk, Anita E., author
Allyn and Bacon , 1995
Buku Teks
Feldman, Robert S.
McGraw-Hill, 2005
Multimedia
Gage, N. L.
Houghton Miffiln, 1988
Buku Teks