Approximate Solution of Two-Dimensional Linear Systems of Fractional Order Partial Integro-Differential Equations Using Variational Iteration Method (B. I. . Asker, F. S. . Fadhel, M. S. . Ismael, & S. A. . Abdul Karim , Trans.). (2025). Babylonian Journal of Mathematics, 2025, 92-101. https://doi.org/10.58496/BJM/2025/010