Al-Mohammadi, M. A. H. “Existence, Uniqueness, and Numerical Solutions for 2D Volterra-Fredholm Equations With Singular Kernels”. CENTRAL ASIAN JOURNAL OF MATHEMATICAL THEORY AND COMPUTER SCIENCES, Vol. 6, no. 3, May 2025, pp. 546-60, https://cajmtcs.centralasianstudies.org/index.php/CAJMTCS/article/view/777.