Berk, Laura E., author
Allyn and bocon , 2001
Buku Teks
Dacey, John S., author
McGraw-Hill, 2002
Buku Teks
Boyd, Denise G., author
Pearson, 2014
Buku Teks
Payne, V. Gregory, 1950-, author
Mayfield Publishing, 1999
Buku Teks
Payne, V. Gregory, 1950-, author
McGraw-Hill, 2012
Buku Teks