1.
Al-Hayani W, J. Ahmed M. The Homotopy Perturbation Method to Solve Initial Value Problems of First Order with Discontinuities. RJCSM [Internet]. 2022 Dec. 5 [cited 2025 Oct. 13];16(2):61-70. Available from: https://csmj.uomosul.edu.iq/index.php/csmj/article/view/36860