ULLAH, K.; MAHMOOD, T.; JAN, N.; BROUMI, S.; KHAN, Q. On Bipolar-Valued Hesitant Fuzzy Sets and Their Applications in Multi-Attribute Decision Making. The Nucleus, [S. l.], v. 55, n. 2, p. 93–101, 2018. Disponível em: http://thenucleuspak.org.pk/index.php/Nucleus/article/view/417. Acesso em: 3 jul. 2024.