Team, S. (2020). Positive Solution of Boundary Value Problem Involving Fractional Pantograph Differential Equation: Piyachat Borisut, Chaiwat Auipa-arch. Thai Journal of Mathematics, 19(3), 1056–1067. Retrieved from https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1216