DUPONT, William D.; PLUMMER JR., W. Dale. Density Distribution Sunflower Plots. Journal of Statistical Software, [S. l.], v. 8, n. 3, p. 1–5, 2003. DOI: 10.18637/jss.v008.i03. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v008i03. Acesso em: 8 apr. 2025.