Dabwan, N.M. and Hasan, Y.Q. 2026. On the Analytical Treatment of High-Order Integro-Differential Equations with Variable Coefficients and Mixed Kernels. University of Aden Journal of Natural and Applied Sciences. 30, 1 (Jun. 2026), 41–53. DOI:https://doi.org/10.47372/uajnas.2026.n1.a03.