KOŠMELJ, Katarina. Basis of analysis of covariance. Acta agriculturae Slovenica, Ljubljana, SI, v. 83, n. 2, p. 341–352, 2004. DOI: 10.14720/aas.2004.83.2.15447. Disponível em: https://journals.uni-lj.si/aas/article/view/15447. Acesso em: 29 apr. 2025.