Umer Shuaib, and Waseem Asghar. “Algebraic Properties of λ-Fuzzy Subgroups”. Jordan Journal of Mathematics and Statistics 12, no. 2 (May 18, 2025): 115–134. Accessed September 10, 2025. https://jjms.yu.edu.jo/index.php/jjms/article/view/935.