Deepak Majhi, and Uttam Kumar Prasad. “Improvement of Exponential Chain-Type Estimators of Population Mean Under Double Sampling”. International Journal of Mathematics And its Applications 14, no. 2 (June 13, 2026): 73–81. Accessed June 13, 2026. https://ijmaa.in/index.php/ijmaa/article/view/1643.