Verner, M. D., author
Penguin Books , 1971
Buku Teks
Grondin, Simon, author
Springer International Publishing, 2016
eBooks
Boring, Edwin G., author
Appleton, 1942
Buku Teks
Arnheim, Rudolf, author
University of California Press, 1957
Buku Referensi
edited by Vincent Yzerbyt, Charles M. Judd and Olivier Corneille
Psychology Press, 2004
Buku Teks