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, [S. l.], v. 51, n. 8, p. 45–65, 2025. Disponível em: https://pujm.pu.edu.pk/index.php/pujm/article/view/471. Acesso em: 29 jun. 2025.