Ugboh, J. A., and I. M. Esuabana. “Existence and Uniqueness Result for a Class of Impulsive Delay Differential Equations”. International Journal Of Chemistry, Mathematics And Physics(IJCMP) 2, no. 4 (August 31, 2018). Accessed July 22, 2024. https://journal-repository.com/index.php/ijcmp/article/view/3333.