1. Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR);American Psychiatric Association,2000
2. The psychiatric symptoms, diagnosis, and care needs of 100 mentally handicapped patients;Ballinger;British Journal of Psychiatry,1991
3. Who are the dually diagnosed?;Borthwick-Duffy;American Journal on Mental Retardation,1990
4. Epidemiology and prevalence of psychopathology in people with mental retardation;Borthwick-Duffy;Journal of Consulting and Clinical Psychology,1994
5. Scales of independent behavior-revised;Bruininks,1997