SANTHI, R. Heptagonal Intuitionistic Fuzzy Number and its Application. Journal of Global Research in Mathematical Archives(JGRMA), [S. l.], v. 6, n. 3, p. 01–04, 2019. Disponível em: https://jgrma.com/index.php/jgrma/article/view/528. Acesso em: 13 mar. 2025.