Sabrina Alves Boldrini Cabral (2021) “Understanding Geometric Proofs and Demonstrations - A Study about Conic Sections with the Aid of Geogebra Software”, Global Journal of Human-Social Science, 21(H8), pp. 7–14. Available at: https://socialscienceresearch.org/index.php/GJHSS/article/view/3843 (Accessed: 1 May 2024).