Jassim, Hassan Kamil, and Hussein Khashan Kadhim. “The Approximate Solutions for Volterra Integro-Differential Equations Within Local Fractional Integral Operators ”. University of Thi-Qar Journal 12, no. 3 (April 23, 2019): 127_133. Accessed October 3, 2025. https://www.jutq.utq.edu.iq/index.php/main/article/view/107.