Bottherill, George
The philosophy of psychology
Cambridge University Press, 1999
 Buku Teks
Handbook of juvenile forensic psychology and psychiatry
Elena L. Grigorenko, editor
[Springer;, ], 2012
 eBooks
International encyclopedia of psychiatry, psychology, psychoanalysis, and neurology
editor by Benjamin B. Wolman
New York : Van Nostrand Reinhold Company, 1977,
 Buku Referensi
Santrock, John W.
Education psychology
McGraw-Hill, 2008
 Buku Teks
Eaton, Merrill T.
Psychiatry
Medical Examination, 1976
 Buku Teks