El-Borai, Mahmoud Mohammed Mostafa, and A. Tarek S.A. “Existence and Uniqueness of Abstract Stochastic Fractional-Order Differential Equation”. JOURNAL OF ADVANCES IN MATHEMATICS 16 (January 31, 2019): 8280–8287. Accessed July 22, 2024. https://rajpub.com/index.php/jam/article/view/8097.