APA-ийн эшлэл(7 дахь хэвлэлт)

ebrary, Inc, 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). Sense Publishers.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

ebrary, Inc, David Ben-Chaim, Yaffa Keret, ба 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: Sense Publishers, 2012.

MLA -ийн эшлэл (9 дэх хэвлэлт)

ebrary, Inc, et al. Ratio and Proportion: Research and Teaching in Mathematics Teachers' Education (pre- and In-service Mathematics Teachers of Elementary and Middle School Classes). Sense Publishers, 2012.