N.Abood, Basim, Eman A.Hussain, و Mayada T. Wazi. 2018. "Generalized Differential Transformation Method for Solving System of Non Linear Volterra Integro-Differential Equations of Fractional Order". مجلة كلية التربية 1 (25): 523-50. https://doi.org/10.31185/eduj.Vol1.Iss25.139.