JANTANAN, W.; LATTHI, M.; PUIFAI, J. On bi-bases of ordered G-semigroups. Asian Health, Science and Technology Reports, [S. l.], v. 30, n. 3, p. 75–84, 2021. DOI: 10.14456/nujst.2022.28. Disponível em: https://ph03.tci-thaijo.org/index.php/ahstr/article/view/1337. Acesso em: 11 oct. 2026.