Gay, L. (1991). Educational evaluation and measurement: Competencies for analysis and application (2nd ed.). Merrill.
Citace podle Chicago (17th ed.)Gay, L.R. Educational Evaluation and Measurement: Competencies for Analysis and Application. 2nd ed. New York: Merrill, 1991.
Citace podle MLA (9th ed.)Gay, L.R. Educational Evaluation and Measurement: Competencies for Analysis and Application. 2nd ed. Merrill, 1991.
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