Convergence Analysis of Multi-Step Collocation Method to First-Order Volterra Integro-Differential Equation with Non-Vanishing Delay. Eur. J. Pure Appl. Math. [Internet]. 2025 May 1 [cited 2025 Dec. 5];18(2):5766. Available from: https://www.ejpam.com/index.php/ejpam/article/view/5766