1. Curriculum models for successful mainstreaming;Allen;Topics in Early Childhood Special Education,1981
2. Allen, K., Benning, P., & Drummond, W. Integration of normal and handicapped children in a behavior modification preschool: A case study. In George Semb (Ed.), Behavior analysis and education—1972. Lawrence, KA: University of Kansas Support and Development Center.
3. Establishing a nonretarded peer as a behavioral model for retarded toddlers;Apolloni;Perceptual and Motor Skills,1977
4. Bayley scales of infant development;Bayley,1969