Samsul Ariffin Abdul Karim. “Positivity Preserving for Curve and Surface Interpolation Using Rational Cubic Bézier”. Applied Mathematics and Computational Intelligence (AMCI) 7, no. 1 (December 31, 2018): 79–104. Accessed May 5, 2024. https://ejournal.unimap.edu.my/index.php/amci/article/view/170.