WICHAYAPORN JANTANAN; NATEE RAIKHAM; RONNASON CHINRAM. On Ordered Semigroups Containing Covered Bi-Ideals. Science & Technology Asia, [S. l.], v. 27, n. 4, p. 259–264, 2022. Disponível em: https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/247922. Acesso em: 20 apr. 2024.