M. E. Nasr, and M. A. Abdel-Aty. “A New Techniques Applied to Volterra–Fredholm Integral Equations With Discontinuous Kernel”. Journal of Computational Analysis and Applications (JoCAAA) 29, no. 1 (January 4, 2021): 11–24. Accessed October 6, 2024. http://eudoxuspress.com/index.php/pub/article/view/124.