Johnson, Jacqueline L., Keith E. Muller, James C. Slaughter, Matthew J. Gurka, Matthew J. Gribbin, and Sean L. Simpson. “POWERLIB: SAS/IML Software for Computing Power in Multivariate Linear Models”. Journal of Statistical Software 30, no. 5 (April 29, 2009): 1–27. Accessed June 24, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v030i05.