“Approximation Solution of Nonlinear Parabolic Partial Differential Equation via Mixed Galerkin Finite Elements Method With the Crank-Nicolson Scheme”. Iraqi Journal of Science 60, no. 2 (February 28, 2019): 353–361. Accessed August 11, 2025. https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/602.