Zulkifli NS, Samsudin N, Ridzua Aw S, Wan Osman WFH. Centroidal Polygon: A New Enhancement of Euler to Improve Accuracy of First Order Non-Linear Ordinary Differential Equation. IJIE. 2022;14(3):131-138. Accessed August 7, 2026. https://journal.uthm.edu.my/index.php/ijie/article/view/10531