Ahmed, Shazad. “NUMERICAL SOLUTION FOR VOLTERRA-FREDHOLMINTEGRAL EQUATION OF THE SECOND KINDBY USING LEAST SQUARES TECHNIQUE”. Iraqi Journal of Science 52, no. 4 (June 12, 2024): 504–512. Accessed December 15, 2025. https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/13636.