1. APOS theory—A framework for research and curriculum development in mathematics education;Arnon,2014
2. Aspects of proof in pupils’ practice of school mathematics;Balacheff,1988
3. Barkai, R., Tsamir, P., Tirosh, D., & Dreyfus, T. (2002). Proving or refuting arithmetic claims: The case of elementary school teachers. In A. Cockburn & E. Nardi (Eds.), Proceedings of the twenty-sixth annual conference of the international group for the psychology of mathematics education (Vol. 2, pp. 57–64). Norwich, UK.
4. Booth, L. R. (1989). Grade 8 students’ understanding of structural properties in mathematics. In G. Vergnaud, J. Rogalski, & M. Artigue (Eds.), Proceedings of the 13th PME international conference (Vol. 1, pp. 141–148).
5. Bogomolny, M. (2006). The role of example-generation tasks in students’ understanding of linear algebra. Ph.D. dissertation, Simon Fraser University.