Wafaa S. Mohammed. “Petrov Weak Galerkin Finite Element Method for Nonlinear Solving Convection Diffusion Problem ”. The International Journal of Multiphysics, vol. 18, no. 3, Oct. 2024, pp. 1546 -1, https://www.themultiphysicsjournal.com/index.php/ijm/article/view/1457.