“The Cubic B-Spline Operational Matrix Based on Haar Scaling Functions for Solving Varieties of the Fractional Integro-Differential Equations”. Punjab University Journal of Mathematics 51, no. 8 (May 18, 2025): 45–65. Accessed June 29, 2025. https://pujm.pu.edu.pk/index.php/pujm/article/view/471.