6Schuler, A, Communication problems in autism(pp. 163 - 184). NewYork : Plenum.
7Happe,F, (1995) ,The Role of Age and Verbal Ablity in the Theory of Subjects with Autism,Child Development, pp. 843 - 855.
8K. Haas, Abnormal psychology, D. Van Nostrand Co, 1979.
9Kanner L, Autistic disturbances of affective contact, Nervous Child, 1943, pp. 217 - 250.
10Baron - Cohen, S. (1989). The Autistic Child's Theory of Mind:A Case of Specific Developmental Delay. Journal of Child Psychology and Psychiatry, 30,285 - 297.