SOLUTION OF FREDHOLM INTEGRO-DIFFERENTIAL EQUATION BY VARIATIONAL ITERATION METHOD. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 7, n. 2, p. 1–8, 2023. DOI: 10.33003/fjs-2023-0702-1697. Disponível em: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1697. Acesso em: 3 sep. 2025.