H. S. Ali, W. S. Ali, and N. M. Rahmah, “Approximation Solutions for System of Linear Fredhom Integral Equations by Using Decomposition Method”, IHJPAS, vol. 22, no. 4, Aug. 2017, Accessed: Mar. 14, 2025. [Online]. Available: https://jih.uobaghdad.edu.iq/index.php/j/article/view/1160