SINGH , G. N. .; PANDEY , A. K. .; JAISWAL, A. K. . AN EFFICIENT CLASS OF CHAIN-TYPE EXPONENTIAL ESTIMATORS FOR POPULATION MEAN UNDER TWOPHASE SAMPLING SCHEME. Journal of Reliability and Statistical Studies, [S. l.], v. 12, n. 01, p. 23–40, 2019. Disponível em: https://journals.riverpublishers.com/index.php/JRSS/article/view/20787. Acesso em: 26 aug. 2024.