AL-Safi, Mohammed G. S., Wurood R. Abd AL-Hussein, and Ayad Ghazi Naser Al-Shammari. 2018. “A New Approximate Solution for the Telegraph Equation of Space-Fractional Order Derivative by Using Sumudu Method”. Iraqi Journal of Science 59 (3A): 1301-11. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/441.