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Ahmed, Mufeedah. “Existence and Uniqueness of the Approximation Solutions To the Boundary Value Problem for Fractional Sturm-Liouville Differential Equations With the Caputo Derivative”. Journal of Humanitarian and Applied Sciences 8, no. 15 (June 30, 2023): 320–327. Accessed July 3, 2024. https://khsj.elmergib.edu.ly/index.php/jhas/article/view/164.