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2. Let's put motivation where it belongs—within the individual;Ackerman;Personnel Journal,1970
3. Affleck, P. A. Research and demonstration project on task training methods for the severely mentally retarded. Final Report, December 1967. Goodwill Industries, Inc., Springfield, Massachusetts. Research Grant RD2125-P, U.S. Department of HEW.
4. Significant factors in placing mental retardates from a workshop situation;Appell;Personnel and Guidance Journal,1962
5. Ayers, G. E., Innovations in vocational rehabilitation and mental retardation. Proceedings of the Vocational Rehabilitation Subdivision Meetings held at the American Association on Mental Deficiency Conference, San Francisco, May 12–17, 1969.