LOY, A.; HOFMANN, H. HLMdiag: A Suite of Diagnostics for Hierarchical Linear Models in R. Journal of Statistical Software, [S. l.], v. 56, n. 5, p. 1–28, 2014. DOI: 10.18637/jss.v056.i05. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v056i05. Acesso em: 23 may. 2022.