TEAM, S. On Intra-Regular Ordered ⋆-Semigroups: Chong-Yih Wu. Thai Journal of Mathematics, [S. l.], v. 12, n. 1, p. 15–24, 2014. Disponível em: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/430. Acesso em: 5 may. 2024.