MISRA, P. .; SINGH, . R. K. . RATIO-PRODUCT-DIFFERENCE (RPD) TYPE DOUBLE SAMPLING ESTIMATORS FOR FINITE POPULATION VARIANCE USING AUXILIARY INFORMATION. Journal of Reliability and Statistical Studies, [S. l.], v. 7, n. 01, p. 79–91, 2014. Disponível em: https://journals.riverpublishers.com/index.php/JRSS/article/view/21605. Acesso em: 14 may. 2026.