1. Recognition of affective facial expressions by children and adolescents with and without mental retardation;Adams;American Journal on Mental Retardation,1991
2. Social integration of older persons with mental retardation in residential facilities;Anderson;American Journal on Mental Retardation,1992
3. Ekman, P., & Friesen, W. V. (1976). Facial affect slides. Palo Alto, CA: Consulting Psychology Press.
4. Ekman, P., & Oster, H. (1982). Review of research, 1970–1980. In P. Ekman (Ed.), Emotion in the human face (pp. 147–173). Cambridge: Cambridge University Press.
5. Who stays, who goes? Downsizing the institution in America’s most rural state;Heinlein;Research in Developmental Disabilities,1995