1. Ausubel D. Novak } &. Hanesian H. (1978) Educational psychology: A cognitive vieiv (2nd. ed.) New York: Werbel and Peck.
2. Cervero R. (1988). Effective continuing education for professionals. San Francisco; Jossey-Bass.
3. Fox R. (1984). Fostering transfer of learning to work environments. Designing and implementing effective workshops. In T.J. Sork (Ed.). New directions for continuing education no. 22. San Francisco: Jossey-Bass.
4. Lincoln Y. & Cuba E. (1985). Naturalistic inquiry. Newbury Park: Sage Publications.
5. Novak J. (1977). Tfieory of education. Ithaca New York: Cornell University Press.