Kaewta, Supaporn, Pongpol Juntharee, and Sekson Sirisubtawee. 2023. “Applications of the Laplace Variational Iteration and Laplace Homotopy Perturbation Methods for Solving Fractional Integro-Differential Equations”. Thai Journal of Mathematics, September, 91-118. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1474.