Adak, M., and A. Mandal. “Numerical Solution of 2nd Order Boundary Value Problems With Dirichlet, Neumann and Robin Boundary Conditions Using FDM”. Communications in Mathematics and Applications 13, no. 2 (May 23, 2022): 529–537. Accessed May 3, 2024. https://www.rgnpublications.com/journals/index.php/cma/article/view/1667.