[1]
“Estimation of Finite Population Variance Using a Difference- Type Estimator with Optimum and Estimated Optimum Value”, J. Int. Acad. Phys. Sci., vol. 6, no. 2, pp. 87–94, Dec. 2002, Accessed: Oct. 23, 2026. [Online]. Available: http://www.iaps.org.in/journal/index.php/journaliaps/article/view/762