1. Psychological testing and assessment;Aiken,1997
2. American Art Therapy Association. (2004a). About art therapy. Retrieved 1.31.2004. http://www.arttherapy.org/aboutarttherapy/about.htm.
3. American Art Therapy Association. (2004b). Education standards. Retrieved 9.10.2004. http://www.arttherapy.org/aboutaata/educationstandards.pdf.
4. American Educational Research Association, American Psychological Association, & National Council on Measurement in Education. (1999). Standards for educational and psychological testing. Washington, DC: American Educational Research Association.
5. Needed: A major collaborative effort;Anderson;Art therapy: Journal of the American Art Therapy Association,2001