“Soliton Solutions for (3+1)-Dimensional Nonlinear Evolution Equations by Tanh Method”. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ) 32, no. 2 (October 17, 2021): 140–159. Accessed July 21, 2026. https://jrucs.iq/index.php/JAUCS/article/view/329.