Sharif, A.A. and Hamoud, A.A. 2026. On $\psi$-Caputo Fractional Nonlinear Volterra-Fredholm Integro-Differential Equations. Discontinuity, Nonlinearity, and Complexity. 11, 1 (Aug. 2026), 97–106. DOI:https://doi.org/10.5890/DNC.2022.03.008.