THAKUR, N. S. .; GUPTA, K. . A STUDY OF LINEAR COMBINATION BASED FACTOR- TYPE ESTIMATOR FOR ESTIMATING POPULATION MEAN IN SAMPLE SURVEYS. Journal of Reliability and Statistical Studies, [S. l.], v. 6, n. 02, p. 81–90, 2013. Disponível em: https://journals.riverpublishers.com/index.php/JRSS/article/view/21675. Acesso em: 3 jun. 2026.