“Modification of Homotopy Perturbation Algorithm Through Least Square Optimizer for Higher Order Integro-Differential Equations”, Punjab Univ. J. Math., vol. 55, no. 2, pp. 45–57, Feb. 2023, Accessed: Jun. 29, 2025. [Online]. Available: https://pujm.pu.edu.pk/index.php/pujm/article/view/171