MAGIS, D.; FACON, B. deltaPlotR: An R Package for Differential Item Functioning Analysis with Angoff’s Delta Plot. Journal of Statistical Software, Code Snippets, [S. l.], v. 59, n. 1, p. 1–19, 2014. DOI: 10.18637/jss.v059.c01. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v059c01. Acesso em: 15 aug. 2022.