Howe, C., Nunes, T., & Bryant, P. (2011). RATIONAL NUMBER AND PROPORTIONAL REASONING: USING INTENSIVE QUANTITIES TO PROMOTE ACHIEVEMENT IN MATHEMATICS AND SCIENCE.
Chicago-referens (17:e uppl.)Howe, C., T. Nunes, och P. Bryant. RATIONAL NUMBER AND PROPORTIONAL REASONING: USING INTENSIVE QUANTITIES TO PROMOTE ACHIEVEMENT IN MATHEMATICS AND SCIENCE. 2011.
MLA-referens (9:e uppl.)Howe, C., et al. RATIONAL NUMBER AND PROPORTIONAL REASONING: USING INTENSIVE QUANTITIES TO PROMOTE ACHIEVEMENT IN MATHEMATICS AND SCIENCE. 2011.
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