Tiwari, Shruti, Ram Kishor Pandey, Harendra Singh, and Jagdev Singh. 2020. “Embedded Pseudo-Runge-Kutta Methods for First and Second Order Initial Value Problems”. Science & Technology Asia 25 (1), 128-41. https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/240326.