Keenan, Thomas, author
Sage Publications, 2004
Buku Teks
Bornstein, Marc H., author
McGraw-Hill, 1992
Buku Teks
Santrock, John W., author
Erlangga, 1995
Buku Teks
Santrock, John W., author
Erlangga, 2002
Buku Teks
Kathleen McCartnet; Deborah Phillips
Blackwell, 2006
Buku Teks