Gunčaga, Ján, László Budai, and Tibor Kenderessy. “Visualisation in Geometry Education As a Tool for Teaching With Better Understanding”. Teaching Mathematics and Computer Science 18, no. 4 (November 4, 2020): 337–346. Accessed May 3, 2024. https://ojs.lib.unideb.hu/tmcs/article/view/11014.