ABDULGANIY, R. I.; AKINFENWA, O. A.; OSUNKAYODE, A. K.; OKUNUGA, S. A. A HIGHER ORDER TRIGONOMETRICALLY-FITTED METHOD FOR SECOND ORDER NONLINEAR PERIODIC PROBLEMS. Journal of Fundamental and Applied Sciences, [S. l.], v. 13, n. 2, p. 1056–1078, 2021. DOI: 10.4314/jfas.v13i2.23. Disponível em: https://jfas.info/index.php/JFAS/article/view/290. Acesso em: 31 jan. 2025.