On the Periodicity Solutions of Five Systems of Rational Systems of Difference Equations of Order Five. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 17, n. 4, p. 3254–3267, 2024. DOI: 10.29020/nybg.ejpam.v17i4.5425. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/5425. Acesso em: 3 dec. 2024.