CHARRAD, M.; GHAZZALI, . N.; BOITEAU, V.; NIKNAFS, A. NbClust: An R Package for Determining the Relevant Number of Clusters in a Data Set. Journal of Statistical Software, [S. l.], v. 61, n. 6, p. 1–36, 2014. DOI: 10.18637/jss.v061.i06. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v061i06. Acesso em: 26 apr. 2024.