H. A. Hamid, N. Idris, and R. Tapsir, “The Functions of Graphics and Visual Reasoning Demand in Mathematical Problems in the Malaysian National Examination”, AJATeL, vol. 3, pp. 31–45, Apr. 2019, Accessed: Apr. 16, 2025. [Online]. Available: https://ejournal.upsi.edu.my/index.php/AJATeL/article/view/1944