“SOLVABILITY OF THE THIRD-ORDER KORTEWEG-DE VRIES (KDV) EQUATION BY VARIATIONAL ITERATION AND NEW ITERATIVE METHODS” (2020) FULafia Journal of Science and Technology, 6(2), pp. 19–26. Available at: https://lafiascijournals.org.ng/index.php/fjst/article/view/173 (Accessed: 15 July 2026).