Dogan, Mustafa, and Rukiye İçel. “The Role of Dynamic Geometry Software in the Process of Learning: GeoGebra Example about Triangles”. Journal of Human Sciences 8, no. 1 (April 19, 2011): 1441–1458. Accessed May 7, 2024. https://www.j-humansciences.com/ojs/index.php/IJHS/article/view/1547.