- American Association on Intellectual and Developmental Disabilitieswww.aaidd.org
- Administration for Children and Familieswww.acf.hhs.gov
- American Psychological Association (APA)www.apa.org
- Developmental Disabilities Resource Centerwww.ddrcco.com
- Council on Developmental Disabilities (CDD)www.tn.gov
- Intellectual & Developmental Disabilities (DIDD)www.tn.gov
