Olayiwola, O. M., F. S. Apantaku, Kazeem A. Oyekunle, A. A. Akintunde, O. A. Wale-Orojo, and S. A. Olawoore. “A MODIFIED CALIBRATION APPROACH FOR RATIO ESTIMATOR IN STRATIFIED SAMPLING”. FUDMA JOURNAL OF SCIENCES 4, no. 4 (June 15, 2021): 507 - 512. Accessed April 4, 2025. https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/510.