M. S.CHAUDHRY. RATIO ESTIMATORS FOR POPULATION VARIANCE IN ADAPTIVE CLUSTER SAMPLING. Pakistan Journal of Science, [S. l.], v. 68, n. 3, 2023. DOI: 10.57041/pjs.v68i3.526. Disponível em: https://pjosr.com/index.php/pjs/article/view/526. Acesso em: 21 may. 2024.