AHUJA, T. K. .; MISRA, P. .; BELWAL, O. K. . A Generalized Two Phase Sampling Estimator of Ratio of Population Means Using Auxiliary Information. Journal of Reliability and Statistical Studies, [S. l.], v. 14, n. 01, p. 1–16, 2021. DOI: 10.13052/jrss0974-8024.1411. Disponível em: https://journals.riverpublishers.com/index.php/JRSS/article/view/20361. Acesso em: 25 aug. 2024.