Jassim, Hassan Kamil, and Hussein Khashan Kadhim. 2019. “The Approximate Solutions for Volterra Integro-Differential Equations Within Local Fractional Integral Operators ”. University of Thi-Qar Journal 12 (3):127_133. https://www.jutq.utq.edu.iq/index.php/main/article/view/107.