Tran, T. ., Nguyen, N.-G. ., Bui, M.-D. . and Phan, A.-H. . (2014) “Discovery Learning with the Help of the GeoGebra Dynamic Geometry Software ”, International Journal of Learning, Teaching and Educational Research, 7(1), pp. 44–57. Available at: https://www.ijlter.net/index.php/ijlter/article/view/1170 (Accessed: 21 July 2026).