Barker, Chris
Research methods in clinical psychology : an introduction for students and practitioners
John Wiley & Sons, 2002
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Schroeder, David A.
The psychology of helping and altruism: problems and puzzles
McGraw-Hill, 1995
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Theresia Maharini
Coping lanjut usia pria terhadap kematian pasangan
1997
 UI - Skripsi Membership
Hebb, Donald Olding
a Textbook of psychology: modern Asia edition
W.B. Saunders Company, 1961
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Judging people a guide to orthodox and unorthodox methods of assesment
edited by D. Mackenzie Davey and Marjorie Harris
McGraw-Hill, 1982
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