Evidence-based practice and intellectual disabilities
edited by Peter Sturmey and Robert Didden
MA Wiley-Blackwell, 2014
 Buku Teks
Levy, Robert M.
The Right of People with Mental Disabilities
Southern Illinois University Press, 1996
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Trull, Timothy J., 1960-
Clinical psychology
Thomson Wadsworth, 2005
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Trull, Timothy J., 1960-
Clinical psychology
Thomson , 2005
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Language and communication in people with learning disabilities
Michael Beveridge, editor
Routledge, 2001
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