Sibbaluca, L. M. (2008). Clarification of ambiguous problems: Effects on problem-solving ability and attitude towards mathematics.
Παραπομπή σε μορφή Chicago (17η εκδ.)Sibbaluca, Luzviminda Mangino. Clarification of Ambiguous Problems: Effects on Problem-solving Ability and Attitude Towards Mathematics. 2008.
Παραπομπή σε μορφή MLA (9th εκδ.)Sibbaluca, Luzviminda Mangino. Clarification of Ambiguous Problems: Effects on Problem-solving Ability and Attitude Towards Mathematics. 2008.
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