Rabiu A, Abubakar Yahaya, Muhammad Abdulkarim. MODIFICATION OF SEPARATE RATIO TYPE EXPONENTIAL ESTIMATOR: A POST-STRATIFICATION APPROACH. FJS [Internet]. 2021Jul.10 [cited 2024Apr.26];5(2):404 -412. Available from: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/629