Hyperstability of Functional Equation Deriving from Quintic Mapping in Banach Space by Fixed Point Method. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 18, n. 1, p. 5757, 2025. DOI: 10.29020/nybg.ejpam.v18i1.5757. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/5757. Acesso em: 6 feb. 2025.