LAWRENCE, M.; TEMPLE LANG, D. RGtk2: A Graphical User Interface Toolkit for R. Journal of Statistical Software, [S. l.], v. 37, n. 8, p. 1–52, 2010. DOI: 10.18637/jss.v037.i08. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v037i08. Acesso em: 8 feb. 2023.