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Dyfyniad Arddull ChicagoSibbaluca, Luzviminda Mangino. Clarification of Ambiguous Problems: Effects on Problem-solving Ability and Attitude Towards Mathematics. 2008.
Dyfyniad MLASibbaluca, Luzviminda Mangino. Clarification of Ambiguous Problems: Effects on Problem-solving Ability and Attitude Towards Mathematics. 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.