Podisuk, Maitree, and Pornchai Chaisanit. “Solving Boundary Value Problem of Ordinary Differential Equations by Polynomials (2)”. CURRENT APPLIED SCIENCE AND TECHNOLOGY 5, no. 1 (November 12, 2018): 385–391. accessed September 21, 2026. https://li01.tci-thaijo.org/index.php/cast/article/view/162358.