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Dyfyniad Arddull ChicagoWindham, Douglas M. The Evaluation of Educational Efficiency: Constraints, Issues, and Policies. Greenwich, Conn.: JAI Press, 1990.
Dyfyniad MLAWindham, Douglas M. The Evaluation of Educational Efficiency: Constraints, Issues, and Policies. JAI Press, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.