BORZOOEI, R.A.; SAFFAR, B. Ganji; AMERI, R. ON HYPER EQ-ALGEBRAS. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 31, p. 77–96, 2013. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6159. Acesso em: 26 jul. 2026.