YOUSEF, G. Biased estimators in beta regression model in the presence of Multicollinearity. College of Basic Education Research Journal, [S. l.], v. 19, n. 3, p. 652–665, 2023. DOI: 10.33899/berj.2023.180672. Disponível em: https://edusj.uomosul.edu.iq/index.php/berj/article/view/37978. Acesso em: 26 oct. 2025.