Wiersma, W. (2009). Research methods in education: An introduction. Boston: Pearson/Allyn and Bacon.
Chicago Stili AlıntıWiersma, William. Research Methods in Education: An Introduction. Boston: Pearson/Allyn and Bacon, 2009.
MLA AlıntıWiersma, William. Research Methods in Education: An Introduction. Boston: Pearson/Allyn and Bacon, 2009.
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