1. Proficiency theory of adult learning
2. Adult learning and proficiency. In and , eds., Advances in motivation and achievement, vol 4: Motivation in adulthood. Greenwood, CT: JAI Press, Inc, 1985.
3. Helping adults learn. San Francisco, CA: Jossey-Bass, 1986.
4. Self-efficacy mechanism in human agency.
5. Adults as learners. San Francisco: Jossey-Bass, 1981.