1. Long-term retention of self-help skill training in the profoundly retarded;Ball;American Journal of Mental Deficiency,1971
2. Time delay and system of least prompts: A comparison of in teaching manual sign production;Bennet;Education and Training of the Mentally Retarded,1986
3. Response prompting and the transfer of stimulus control: Methods, research, and a conceptual framework;Billingsley;The Journal of the Association for the Severely Handicapped,1983
4. A treatment package for increasing sight work recognition for use in daily living skills;Browder;Education and Training of the Mentally Retarded,1984
5. The use of time delay to teach manual signs to a severely retarded student;Browder;Education and Training of the Mentally Retarded,1981