YOUSAFZAI, F.; ZIA, M. D.; LEE, Y.-Y. .; KHAN, M.- ul-I. Applications of Intuitionistic Fuzzy Sets to Decision-Making Using AG-Groupoids and Klein Four-Group. Contemporary Mathematics , [S. l.], v. 6, n. 6, p. 8509–8539, 2025. DOI: 10.37256/cm.6620258707. Disponível em: https://ojs.wiserpub.com/index.php/CM/article/view/8707. Acesso em: 1 jan. 2026.