Mechee, M.S. and Al-Juaifri, G.A. (2019) “Homotopy Perturbation Method for Solving Generalized Riccati Differential Equation”, Al-Nahrain Journal of Science, (2), pp. 87–96. Available at: https://mail.anjs.edu.iq/index.php/anjs/article/view/2059 (Accessed: 22 May 2026).