Cronbach, L.J., and others (1980 ). Toward Reform of Program Evaluation: Aims, Methods, and Institutional Arrangements. San Francisco: Jossey-Bass .
2.
Guba, E.G., and Lincoln, Y.S. (1981). Effective Evaluation. San Francisco : Jossey-Bass.
3.
Guba, E.G., and Lincoln, Y.S. (1989). Fourth Generation Evaluation. Newbury Park, CA: Sage.
4.
Nevo, D. (1983). The conceptualization of educational evaluation: An analytical review of the literature. Review of Educational Research, 3(1), 117-128.
5.
Stake, R.E. (1973). Program evaluation, particularly responsive evaluation . A paper presented at the conference on New Trends in Evaluation, Goteborg, Sweden in October.