Behavior of Solution of Singularly Perturbed Difference Equations with Quadratic Small Parameter. JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences, [S. l.], v. 29, n. 2, p. 35–44, 2021. Disponível em: https://www.journalofbabylon.com/index.php/JUBPAS/article/view/3645. Acesso em: 3 may. 2025.