G. UTHRA; K. THANGAVELU; S. SHUNMUGAPRIYA. Ranking Generalized Institutionistic Pentagonal Fuzzy Number by Centroidal Approach. International Journal of Mathematics And its Applications, [S. l.], v. 5, n. 4 - C, p. 389–393, 2017. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/1285. Acesso em: 20 may. 2024.