A New Class of Generalized Exponential Ratio and Product Type Estimators for Population Mean using Variance of an Auxiliary Variable. Journal of Statistics, [S. l.], v. 21, 2014. DOI: 10.65463/jstat.2014.96. Disponível em: https://jstat.gcu.edu.pk/index.php/jstat/article/view/96. Acesso em: 12 aug. 2026.