Hussain, Eman A., and Ayad W. Ali. “Existence and Uniqueness of The Solution of Nonlinear Volterra Fuzzy Integral Equations”. Ibn AL-Haitham Journal For Pure and Applied Sciences 26, no. 2 (April 27, 2017): 348–357. Accessed November 24, 2024. https://jih.uobaghdad.edu.iq/index.php/j/article/view/482.