Worthen, B. R., & Sanders, J. R. (1987). Educational evaluation: Alternative approaches and practical guidelines. Longman.
Chicago Style (17. basım) AtıfWorthen, Blaine R., ve James R. Sanders. Educational Evaluation: Alternative Approaches and Practical Guidelines. New York: Longman, 1987.
MLA (8th ed.) AtıfWorthen, Blaine R., ve James R. Sanders. Educational Evaluation: Alternative Approaches and Practical Guidelines. Longman, 1987.
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