Dunya Mohee Haider, and Ali Abdul Kadhum Ruhaima. “Variational Iterational Method for Solving Some Real Life Applications”. Journal of Madenat Alelem University College, Vol. 11, no. 2, Nov. 2019, pp. 31-47, https://journal.mauc.edu.iq/index.php/JMAUC/article/view/305.