Shore, Cecilia M., author
Pearson, 2004
Buku Teks
edited by Ross Vasta
Jessica Kingsley, c1992
Buku Teks
Santrock, John W., author
McGraw-Hill, 2001
Buku Teks
Kail, Robert V., author
Prentice Hall International, 2001
Buku Teks
Nadelman, Lorraine, author
Lawrence Erlbaum, 2004
Buku Teks