McMillan, J. H., & Wergin, J. F. (2002). Understanding and evaluating educational research (2nd ed.). Merrill.
Lua i Stíl Chicago (17ú heag.)McMillan, James H., agus Jon F. Wergin. Understanding and Evaluating Educational Research. 2nd ed. Upper Saddle River, N.J: Merrill, 2002.
Lua MLA (9ú heag.)McMillan, James H., agus Jon F. Wergin. Understanding and Evaluating Educational Research. 2nd ed. Merrill, 2002.
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