The Analytic Solutions of Nonlinear Generalized Pantograph Differential Equations of Higher Order Via Coupled Adomian-Homotopy Technique. Iraqi Journal of Science [Internet]. 2022 Nov. 30 [cited 2025 Feb. 22];63(11):4911-7. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/5524