SRIPON, K.; LAYSIRIKUL, E.; CHINRAM, R. Maximal and Minimal Congruences on the Semigroup 𝑇𝐸 (𝑋). Science & Technology Asia, [S. l.], v. 29, n. 4, p. 32–38, 2024. Disponível em: https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/253628. Acesso em: 6 dec. 2025.