Gall, J. P., Gall, M. D., & Borg, W. R. (2005). Applying educational research: A practical guide (5th ed.). Pearson/Allyn and Bacon.
Chicago Style aipamenaGall, Joyce P., Meredith D. Gall, and Walter R. Borg. Applying Educational Research: A Practical Guide. 5th ed. Boston, MA: Pearson/Allyn and Bacon, 2005.
MLA aipamenaGall, Joyce P., et al. Applying Educational Research: A Practical Guide. 5th ed. Pearson/Allyn and Bacon, 2005.
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