SOLVABILITY OF THE THIRD-ORDER KORTEWEG-DE VRIES (KDV) EQUATION BY VARIATIONAL ITERATION AND NEW ITERATIVE METHODS. FJST [انترنت]. 31 ديسمبر، 2020 [وثق 17 مايو، 2026];6(2):19-26. موجود في: https://lafiascijournals.org.ng/index.php/fjst/article/view/173