Olayiwola, O.M., Apantaku, F.S., Oyekunle, K.A., Akintunde, A.A., Wale-Orojo, O.A. and Olawoore, S.A. 2021. A MODIFIED CALIBRATION APPROACH FOR RATIO ESTIMATOR IN STRATIFIED SAMPLING. FUDMA JOURNAL OF SCIENCES. 4, 4 (Jun. 2021), 507 - 512. DOI:https://doi.org/10.33003/fjs-2020-0404-510.