Error Analysis of the Classical Artificial Diffusion Weak Galerkin Finite Element Method for the steady state- convection diffusion-reaction Equation in 2-D. Samarra Journal of Pure and Applied Science, [S. l.], v. 6, n. 2, p. 276–288, 2024. DOI: 10.54153/sjpas.2024.v6i2.893. Disponível em: https://sjpas.com/index.php/sjpas/article/view/893. Acesso em: 15 may. 2026.