1. Ausubel,D.P(1952).ego development and personality. NewYork:Grume and Stratton.
2. Lilling,L.W and Yerra ,C.C(1965).Academic achievement correlates of Achievement and affiliation motivation: Journal of Psychology 115-119.
3. Meadaw, K.P (1980). Deafness and child development. Berkeley, C.D; University of California Press.
4. Mercer,C.D(1993).Teaching students with learning problems. NewJersey:Prentice hall.Inc.
5. Peterson, N.L.(1987). Early intervention for handicapped and at risk children. Denver; The love publishing.
6. Ross, M., Brackett, D. & Maxon, A.B. (1991). Assessment and management of hearing impaired children: Principals and practices – Autism, T X : Pro – Ed.
7. Webster.(ed) (1962).Webster’s new Twentieth century Dictionary.Vol.1 and vol II.New York :The world publishing Company.