Nadelman, Lorraine, author
Lawrence Erlbaum, 2004
Buku Teks
Keenan, Thomas, author
Sage Publications, 2004
Buku Teks
Bergin, Christi Crosby, author
Wadsworth and Cengage Learning, 2012
Buku Referensi
New York, 1993
Buku Teks
Papalia, Diane E., author
McGraw-HIll , 2006
Buku Teks