KIM, H.-J.; SHULTS, J. . %QLS SAS Macro: A SAS Macro for Analysis of Correlated Data Using Quasi-Least Squares. Journal of Statistical Software, [S. l.], v. 35, n. 2, p. 1–22, 2010. DOI: 10.18637/jss.v035.i02. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v035i02. Acesso em: 9 dec. 2021.