JOHNSON, Jacqueline L.; MULLER, Keith E.; SLAUGHTER, James C.; GURKA, Matthew J.; GRIBBIN, Matthew J.; SIMPSON, Sean L. POWERLIB: SAS/IML Software for Computing Power in Multivariate Linear Models. Journal of Statistical Software, [S. l.], v. 30, n. 5, p. 1–27, 2009. DOI: 10.18637/jss.v030.i05. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v030i05. Acesso em: 9 apr. 2025.