Abdul-Hassan Atiyah, Nada, and Marwa Qasaim Atshan. 2024. “Theoretical and Numerical Analysis of Singular Perturbation Problems in Ordinary Differential Equations”. Journal of Al-Qadisiyah for Computer Science and Mathematics 16 (3):Math. 63–70. https://doi.org/10.29304/jqcsm.2024.16.31667.