ET. AL., R. K. . Oscillatory Solutions Of Fourth- Order Delay Difference Equations With Damp . Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 12, n. 9, p. 912–916, 2021. Disponível em: https://turcomat.org/index.php/turkbilmat/article/view/3319. Acesso em: 5 may. 2024.