USORO, A.; IBIOK, E. Application of principal component analysis to regression coefficients estimation as an alternative to ordinary least squares method. International Journal of Natural and Applied Sciences, [S. l.], v. 4, n. 2, 2009. DOI: 10.4314/ijonas.v4i2.36280. Disponível em: https://www.ajol.info/index.php/ijonas/article/view/36280. Acesso em: 6 oct. 2026.