Jarvie, Ian C., author
The Scarecrow Press, 1978
Buku Teks
North, Adrian C., author
Oxford, 2008
Buku Teks
edited by W. Gerrod Parrott
Psychology Press, 2001
Buku Teks
Margit E. Oswald, Steffen Bieneck, author
Wiley-Blackwell, 2009
Buku Teks
Baumeister
2009
Buku Teks