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Dyfyniad Arddull ChicagoVashist, S. R. Perspective in Measurement and Evaluation in Education. Nrew Delhi: Anmol, 1993.
Dyfyniad MLAVashist, S. R. Perspective in Measurement and Evaluation in Education. Anmol, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.