“Using Variable Iterative Method to Calculate the Numerical Approximations Solution for Fractional Differential Equations”. JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences 33, no. 1 (May 10, 2025): 54–62. Accessed August 4, 2025. https://mail.journalofbabylon.com/index.php/JUBPAS/article/view/5642.