Kurdistan H. Hama and Shazad S. Ahmed 2026. A Numerical Solution of Mixed-Order Fredholm Integro-Differential Equations by Using Trapezoidal, Two-Block, and Modified Two-Block Methods. Journal of Al-Qadisiyah for Computer Science and Mathematics. 18, 1 (Mar. 2026), Math 40–64. DOI:https://doi.org/10.29304/jqcsm.2026.18.12418.