1. General Principles of Learning and Motivation
2. Analysis of a supervisor. Unpublished document, 1982.
3. A theory of cognitive dissonance. Stanford: University Press, 1957.
4. & Instructional message design: Principles from the behavioral sciences. Englewood Cliff, NJ: Educational Technology Publications, 1978.
5. Making the most of the first 20 minutes of your training. Training/HRD, August, 1977.