1. Archer, T. (1987). Towards animal models of mental retardation. Trends in Pharmacological Sciences’, 8, 165.
2. Chamove, A. S. (1984a). Analysis of learning in retarded monkeys. Journal of Mental Deficiency Research, 28, 21–41.
3. Chamove, A. S. (1984b). Long-term learning deficits of mentally retarded monkeys. American Journal of Mental Deficiency Research, 88, 352–368.
4. Clarke, A. M., & Clarke, A. D. B. (1973). Mental subnormality. In H. J. Eysenck (Ed.), Handbook of abnormal psychology (pp. 212–258). San Diego, CA: Robert R. Knapp.
5. Clausen, J. (1978). Psychophysiology in mental retardation. International Review of Research in Mental Retardation, 9, 85–125.