1. Alberto, P., & Troutman, A.C. (1985). Applied behavioral analysis for teachers. Columbus, OH: Charles E. Merrill.
2. Ayres, H.J. (1979). Sensory integration and the child (p. 95). Los Angeles: Western Psychological Services.
3. Caldwell, M.L., & Tayler, R.L. (1983). A clinical note on food preference of individuals with Prader-Willi syndrome: The need for empirical research. Journal of Mental Deficiency Research, 27, 45–49.
4. Cassidy, S.B. (1984). Prader Willi syndrome. Current Problems in Pediatrics, 15, 1–53.
5. Education for all handicapped Children Act of 1975, 20 U.S.C. §1400–1420 (1983).