Team, Support. 2019. “Mathematical Simulation of a Groundwater Management in a Drought Area Using an Implicit Finite Dierence Method: Nattawut Pongnu, Nopparat Pochai”. Thai Journal of Mathematics 17 (3):673-84. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/919.