Thomson, Robert, author
Penguin Books, 1974
Buku Teks
Cohen, Arthur R., author
Basic Books, 1964
Buku Teks
edited by Keith J. Holyoak, Robert G. Morrison
Oxford University Press, 2012
Buku Teks
Verner, M. D., author
Penguin Books , 1971
Buku Teks
edited by Roger L. Peterson ... [and others]
The American Psychological Association, 1991
Buku Teks