E. Ghatet, A., احمد, H. Sh. Mahmood, and هبة. “Solve Partial Differential Equations Using the Banach Contraction Method and Improve Results Using the Trapezoidal Rule”. AL-Rafidain Journal of Computer Sciences and Mathematics, vol. 15, no. 1, June 2025, pp. 79-85, https://rjps.uomosul.edu.iq/index.php/csmj/article/view/19465.