Ben-Chaim, D., Keret, Y., & Ilany, B. (2012). Ratio and Proportion: Research and Teaching in Mathematics Teachers Education (Pre- and In-Service Mathematics Teachers of Elementary and Middle School Classes). SensePublishers : Imprint: SensePublishers. https://doi.org/10.1007/978-94-6091-784-4
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Chicago-čujuhus (17. p.)
Ben-Chaim, David, Yaffa Keret, juo Bat-Sheva Ilany. Ratio and Proportion: Research and Teaching in Mathematics Teachers Education (Pre- and In-Service Mathematics Teachers of Elementary and Middle School Classes). Rotterdam: SensePublishers : Imprint: SensePublishers, 2012. https://doi.org/10.1007/978-94-6091-784-4.
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MLA-čujuhus (9. p.)
Ben-Chaim, David, et al. Ratio and Proportion: Research and Teaching in Mathematics Teachers Education (Pre- and In-Service Mathematics Teachers of Elementary and Middle School Classes). SensePublishers : Imprint: SensePublishers, 2012. https://doi.org/10.1007/978-94-6091-784-4.
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