Tohutoro APA (7th ed.)
Dalen, D. B. (1979). Understanding educational research: An introduction (4th ed.). McGraw-Hill.
Tohutoru Kātū Chicago (17th ed.)
Dalen, Deobold B. Understanding Educational Research: An Introduction. 4th ed. New York: McGraw-Hill, 1979.
Tohutoro MLA (9th ed.)
Dalen, Deobold B. Understanding Educational Research: An Introduction. 4th ed. McGraw-Hill, 1979.
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