El-Bably MK, Kozae A, Abd El-Monsef ME. New Generalized Definitions of Rough Membership Relations and Functions from Topological Point of View. JAM [Internet]. 2014 May 24 [cited 2024 Jul. 22];8(3):1635-52. Available from: https://rajpub.com/index.php/jam/article/view/2575