Clement, Etebong P, and Akaninyene E Anieting. “Improvement on Calibration Weightings in Stratified Random Sampling”. International Journal of Statistical Sciences 24, no. 2 (December 9, 2024): 125–136. Accessed April 23, 2025. https://banglajol.info/index.php/ijss/article/view/77999.