CaffarellaR.S. (1994). Planning programs for adult learners. A practical guide for educators, trainers, and staff developers.San Francisco: Jossey-Bass.
2.
CerveroR.M., and WilsonA.L. (1994). Planning responsibility for adult education. A Guide for negotiating power and interests.San Francisco: Jossey-Bass.
3.
HouleC. O. (1996). The design of education (2nd ed.). San Francisco: Jossey-Bass.
4.
KnowlesM.S. (1980). The modern practice of adult education.New York: Cambridge University Press.
5.
MerriamS.B., and CaffarellaR. S. (1999). Learning in adulthood. A comprehensive guide (2nd ed.). San Francisco: Jossey-Bass. Sork and Caffarella, 1989.
