Ben-Chaim, D. (2012). Ratio and proportion: Research and teaching in mathematics teachers' education (pre- and in-service mathematics teachers of elementary and middle school classes). SensePublishers.
Chicago-Zitierstil (17. Ausg.)Ben-Chaim, David. Ratio and Proportion: Research and Teaching in Mathematics Teachers' Education (pre- and In-service Mathematics Teachers of Elementary and Middle School Classes). Rotterdam: SensePublishers, 2012.
MLA-Zitierstil (9. Ausg.)Ben-Chaim, David. Ratio and Proportion: Research and Teaching in Mathematics Teachers' Education (pre- and In-service Mathematics Teachers of Elementary and Middle School Classes). SensePublishers, 2012.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.