NUMERICAL APPROXIMATION OF OSCILLATORY INITIAL VALUE PROBLEMS USING THE HOMOTOPY ANALYSIS ALGORITHM. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 7, n. 2, p. 227–234, 2023. DOI: 10.33003/fjs-2023-0702-1743. Disponível em: http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/1743. Acesso em: 12 sep. 2025.