APA引文

Ng, L. E., & Fan, L. (2008). Representation of problem solving in Singaporean primary Mathematics textbooks with respect to types, polya's model and heuristics.

Chicago Style Citation

Ng, Luan Eng., and Lianghuo Fan. Representation of Problem Solving in Singaporean Primary Mathematics Textbooks With Respect to Types, Polya's Model and Heuristics. 2008.

MLA引文

Ng, Luan Eng., and Lianghuo Fan. Representation of Problem Solving in Singaporean Primary Mathematics Textbooks With Respect to Types, Polya's Model and Heuristics. 2008.

警告：這些引文格式不一定是100％准確.