1. Arkes H. R. and Garske J. P. 1982. Psychological theories of motivation. Monterey, CA: Brooks/Cole.
2. Clabby J. G. and Belz E. J. 1985. Psychological barriers to learning: An approach using group treatment. Small Group Behavior, 16, 525?533.
3. Cranny A. G. 1983. Two decades of adult reading programs: Growth, problems, prospects. Journal of Reading, 26, 416?422.
4. Darling, S. 1982. Adult education projects that work. Unpublished manuscript.
5. Darling S. 1984. Illiteracy: An everyday problem for millions. Appalachia, 18, 21?28.