“ An Efficient Numerical Method for Solving Volterra-Fredholm Integro-Differential Equations of Fractional Order by Using Shifted Jacobi-Spectral Collocation Method”. Baghdad Science Journal 15, no. 3 (September 13, 2018): 0344. Accessed April 28, 2024. https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2483.