Glassman, William E., author
Open University Press, 2004
Buku Teks
DiFonzo, Nicholas, author
APA, 2007
Buku Teks
Niedenthal, Paula, author
Psychology Press, 2006
Buku Teks
Frost, Nollaig, author
Open University Press, 2011
Buku Teks
Frost, Nollaig, author
McGraw-Hill, 2011
Buku Teks