Cronbach, L. J. (1982). Designing evaluation of educational and social programs. Jossey-Bass Publ.
Lua i Stíl Chicago (17ú heag.)Cronbach, Lee J. Designing Evaluation of Educational and Social Programs. Jossey-Bass Publ, 1982.
Lua MLA (8ú heag.)Cronbach, Lee J. Designing Evaluation of Educational and Social Programs. Jossey-Bass Publ, 1982.
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