Team S. Green’s Relations and Regularity for Semigroups of Transformations with Restricted Range that Preserve Double Direction Equivalence Relations: Utsithon Chaichompoo, Kritsada Sangkhanan. Thai J Math [Internet]. 2019 Nov. 22 [cited 2024 Dec. 22];. Available from: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/853