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Dyfyniad Arddull ChicagoEggen, Paul D, Donald P. Kauchak, and Stuart Garry. Educational Psychology: Windows on Classrooms. 6th ed. Upper Saddle River, N.J: Pearson/Merrill Prentice Hall, 2004.
Dyfyniad MLAEggen, Paul D, et al. Educational Psychology: Windows on Classrooms. 6th ed. Pearson/Merrill Prentice Hall, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.