MIRVAKILI, S.; GHIASVAND, P. Transitivity of The delta^n-Relation in Hypergroups. Journal of the Indonesian Mathematical Society, [S. l.], v. 24, n. 2, p. 36–46, 2018. DOI: 10.22342/jims.24.2.524.36-46. Disponível em: https://jims-a.org/index.php/jimsa/article/view/524. Acesso em: 25 apr. 2024.