Davies, Douglas, 1942-, author
The Guilford Press, 2004
Buku Teks
editor-in-chief Richard M. Lenrner
New Jersey Wiley, 2015
Buku Referensi
Santrock, John W., author
McGraw-Hill, 2007
Buku Teks
editor-in-chief Richard M. Lenner
New Jersey Wiley, 2015
Buku Referensi
Santrock, John W., author
Erlangga, 2007
Buku Teks