Laek Sazzad Andallah, N. S. (2022). Investigation of Water Pollution in the River with Second-Order Explicit Finite Difference Scheme of Advection-Diffusion Equation and First-Order Explicit Finite Difference Scheme of Advection-Diffusion Equation. Mathematical Statistician and Engineering Applications, 71(2), 12–27. https://doi.org/10.17762/msea.v71i2.62