SpringerLink (Online service), 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.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), David Ben-Chaim, Yaffa Keret, και 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.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), 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.
