1. AMERICAN EVALUATION ASSOCIATION (AEA). 2000. American Evaluation Association: guiding principles for evaluators.American Journal of Evaluation, 21(1) unnumbered pages
2. European Social Programmes
3. BECKER, H. J. Findings from the Teaching, Learning and Computing Survey: is Larry Cuban right? revision of a paper presented at the January 2000 School Technology Leadership Conference of the Council of Chief State School Officers. Washington D. C.
4. BEYWL, W. and POTTER, P. 1998.RENOMO—a design tool for evaluations. Evaluation53–71.