“Solving Two Dimensional Coupled Burger’s Equations and Sine-Gordon Equation Using El-Zaki Transform-Variational Iteration Method”, ANJS, vol. 24, no. 2, pp. 41–47, Jun. 2021, Accessed: Nov. 22, 2024. [Online]. Available: https://anjs.edu.iq/index.php/anjs/article/view/2390