BUTRUS, R.; D. SALEEM, H.; H. SALLO, A. Existence and Unity of the Solution of Integral-Linear Differential Equations with Fractional Ranks Using the Fixed Point Banach Theorem. Journal of Education and Science (JES), [S. l.], v. 18, n. 4, p. 124–137, 2019. DOI: 10.33899/edusj.2019.162861. Disponível em: https://ojs.uomosul.edu.iq/index.php/edusj/article/view/24015. Acesso em: 6 aug. 2025.