Olayiwola OM, Apantaku FS, Oyekunle KA, Akintunde AA, Wale-OrojoOA, Olawoore SA. A MODIFIED CALIBRATION APPROACH FOR RATIO ESTIMATOR IN STRATIFIED SAMPLING. FJS [Internet]. 2021Jun.15 [cited 2024Apr.20];4(4):507 -512. Available from: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/510