1. American Psychiatric Association. 1994. Diagnostic and statistical manual of mental disorders. 4th edititon. Washington, D.C.: APA.
2. 1997. Behavioral characteristics of CHARGE association. Proceedings of the National Conference on Deafblindness. Washington D.C.
3. 1992. Motivational assessment scale. Topeka, KS: Monaco and Associates, Inc.
4. 1993. Looking at Self-Stimulation in the Pursuit of Leisure or I'm Okay, You Have a Mannerism. P.S. NEWS!!! 5(3). Publised by TSBVI Deafblind Outreach Texas School for the Blind and Visually Impaired. http://www.tsbvi.edu/Outreach/seehear/archive/mannerism.html