1. Baturo, A., & Nason, R. (1996). Student teachers' subject matter knowledge within the domain of area measurement. Educational Studies in Mathematics, 31(3), 235-268. https://doi.org/10.1007/BF00376322
2. Bingölbali, E., & Coşkun, M. (2016). A proposed conceptual framework for enhancing the use of making connections skill in mathematics teaching. Eğitim ve Bilim, 41(183), 233-249. http://dx.doi.org/10.15390/EB.2016.4764
3. Bingölbali, E., & Özmantar, M. F. (Eds). (2009). İlköğretimde karşılaşılan matematiksel zorluklar ve çözüm önerileri [Mathematical difficulties encountered in primary education and solution suggestions] (1st ed.). Pegem Akademi.
4. Bragg, P., & Outhred, L. (2000, July, 23-27). Students' knowledge of length units: do they know more than rules about rulers? [Oral presented]. 24th Conference of the International Study Group for the Psychology of Mathematics Education, Hiroshima, Japan.
5. Cavanagh, M. (2008). Area measurement in year 7. Reflections, 33(1), 55-58. https://researchers.mq.edu.au/en/publications/area-measurement-in-year-7/fingerprints/