References

American Psychiatric Association. (2000). Diagnostic and statistical manual of mental disorders(4th ed., text revision). Washington, DC: Author.

Stereotypic movement disorder . (2010). Encyclopedia of Mental Disorders. Retrieved from
http://www.minddisorders.com/Py-Z/Stereotypic-movement-disorder.html

Stuttering. (n.d.). Retrieved from American-Speech-Language-Hearing Association website:
http://www.asha.org/public/speech/disorders/stuttering.htm#four