MISHRA, S. S. .; PRADHAN, B. . CHAIN RATIO ESTIMATOR IN TWO STAGE SAMPLING. Journal of Reliability and Statistical Studies, [S. l.], v. 8, n. 02, p. 21–28, 2015. Disponível em: https://journals.riverpublishers.com/index.php/JRSS/article/view/21041. Acesso em: 28 apr. 2026.