S. Mohammed , W. (2026) “The Error Analysis two-dimension nonlinear convection diffusion problem by using Crank- Nicolson Petrov Weak Galerkin ”, (Humanities, social and applied sciences) Misan Journal of Academic Studies , 25(59), pp. 1-380. Available at: https://misan-jas.com/index.php/ojs/article/view/1339 (Accessed: 3October2026).