1. Baghdadli, A., Pascal, C., Grisi, S., & Aussilloux, C. (2003). Risk factors for self-injurious behaviours among 222 young children with autistic disorders. Journal of Intellectual Disability Research, 47, 622–627.
2. Carr, E. G., & Durrand, V. (1986). The social-communication basis of severe behavioural problems in children. In S. Reiss & R. Bootzin (Eds.), Theoretical issues in behavior therapy (pp. 219–254). NY: Academic Press.
3. Carrow-Woolfolk, E. (1999). Examiner’s manual: Test of auditory comprehension of language (3rd ed.). Austin, TX: Pro-ed.
4. Charlop-Christy, M. H., Carpenter, M., Le, L., LeBlanc, L. A., & Kellet, K. (2002). Using the picture exchange communication system (PECS) with children with autism: Assessment of PECS acquistion, speech, social-communicative behavior, and problem behavior. Journal of Applied Behavior Analysis, 35, 213–231.
5. Dawson, J., Stout, C., Eyer, J., Tattersall, P., Fonkalsrud, J., & Croley, K. (2005). Structured photographic expressive language test- preschool, 2nd edition: manual. DeKalb, IL: Janelle Publications.