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Dyfyniad Arddull ChicagoKhan, Inayat. Research in Teaching English. New Delhi: Ashish, 1990.
Dyfyniad MLAKhan, Inayat. Research in Teaching English. Ashish, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.