Iampan, Aiyared, and Manoj Siripitukdet. “DESCRIBING GREEN’S RELATIONS IN ORDERED Γ-GROUPOIDS USING A NEW CONCEPT: FUZZY SUBSETS”. Italian Journal of Pure and Applied Mathematics 31 (December 31, 2013): 125–140. Accessed July 26, 2026. https://journals.uniurb.it/index.php/ijpam/article/view/6157.