1. National Autism Plan for Children. National Autistic Society for NAISA (National Initiative for Autism: Screening and Assessment) in collaboration with the Royal College of Psychiatrists, Royal College of Paediatrics and Child Health, and the All Party Parliamentary Group on Autism, 2003.
2. The biology of the autistic syndromes;Gillberg,2000
3. Melville CA, Cameron J. Autism. In Fraser W, Kerr M. Seminars in the psychiatry of learning disabilities, Gaskell Press, London 2nd ed. 2003.
4. Health for all children;Hall,2003
5. Lloyd Evans A, Knight-Jones E, Nicholson J. Standards for child development services. British Association of Community Child Health Child Development and Disability Group, BAACH Publication, London 1999.