SRIPON, K.; LAYSIRIKUL, E.; CHAIYA, Y. A Note on Regularity of Certain Semigroups of Transformations Preserving a Reflexive and Transitive Relation. Science & Technology Asia, [S. l.], v. 28, n. 3, p. 37–43, 2023. Disponível em: https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/248936. Acesso em: 6 apr. 2025.