NEW CALIBRATION OF FINITE POPULATION MEAN OF COMBINED RATIO ESTIMATORS IN STRATIFIED RANDOM SAMPLING. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 6, n. 4, p. 37–44, 2022. DOI: 10.33003/fjs-2022-0604-920. Disponível em: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/920. Acesso em: 4 sep. 2025.