Team S. On the Least (Ordered) Semilattice Congruence in Ordered $\Gamma$-Semigroups: M. Siripitukdet, A. Iampan. Thai J Math [Internet]. 2006 Dec. 1 [cited 2024 Dec. 22];4(2):403-15. Available from: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/60