SUBIRANA, I.; SANZ, H.; VILA, J. Building Bivariate Tables: The compareGroups Package for R. Journal of Statistical Software, [S. l.], v. 57, n. 12, p. 1–16, 2014. DOI: 10.18637/jss.v057.i12. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v057i12. Acesso em: 5 oct. 2022.