Lahey, Benjamin B., author
2002
Multimedia
American Psychological Assosiation, 2001
Majalah, Jurnal, Buletin
Kalat, James W., author
Wadsorth , 2001
Buku Teks
Abraham, Amit, author
Tata McGraw-Hill, 2011
Buku Teks
Feldman, Robert S., author
McGraw-Hill, 2015
Buku Teks