Berk, R. A. (1981). Educational evaluation methodology: The state of the art. Johns Hopkins University Press.
Chicago Style (17th ed.) CitationBerk, Ronald A. Educational Evaluation Methodology: The State of the Art. Baltimore, Md: Johns Hopkins University Press, 1981.
MLA citiranjeBerk, Ronald A. Educational Evaluation Methodology: The State of the Art. Johns Hopkins University Press, 1981.
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