LAWSON, J.; SCHAALJE, G. . B.; COLLINGS, B. . J. . Blocking Mixed-Level Factorials with SAS. Journal of Statistical Software, Code Snippets, [S. l.], v. 32, n. 1, p. 1–20, 2009. DOI: 10.18637/jss.v032.c01. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v032c01. Acesso em: 8 dec. 2024.