S. Sekar, A. S. Thirumurugan. Numerical investigation of the weakly singular Volterra integro-differential equations using He0s Homotopy perturbation method. Malaya J. Mat. [Internet]. 2018 Jan. 1 [cited 2024 Nov. 21];6(01):129-32. Available from: https://www.malayajournal.org/index.php/mjm/article/view/785