“Sixth-Order Stable Implicit Finite Difference Scheme for 2-D Heat Conduction Equation on Uniform Cartesian Grids with Dirichlet Boundaries” (2025) Punjab University Journal of Mathematics, 51(5), pp. 27–42. Available at: https://pujm.pu.edu.pk/index.php/pujm/article/view/440 (Accessed: 29 June 2025).