KUMAR, Pranesh; AGARWAL, Satish Kumar. A note of estimation of finite population total using unequal probability sampling schemes. Statistica, [S. l.], v. 49, n. 4, p. 513–518, 1989. DOI: 10.6092/issn.1973-2201/811. Disponível em: https://rivista-statistica.unibo.it/article/view/811. Acesso em: 28 dec. 2024.