Dutta, Dhiman, and Mausumi Sen. “Type-2 Fuzzy Equivalence Relation on A Groupoid under Balanced and Semibalanced Maps”. Journal of Informatics and Mathematical Sciences 10, no. 1-2 (August 9, 2018): 133–151. Accessed November 24, 2024. http://rgnpublications.com/journals/index.php/jims/article/view/535.