YADAV, Rohini; UPADHYAYA, Lakshmi N.; SINGH, Housila P.; CHATTERJEE, S. A chain ratio exponential type estimator in two-phase sampling using auxiliary information. Statistica, [S. l.], v. 73, n. 2, p. 221–234, 2013. DOI: 10.6092/issn.1973-2201/4133. Disponível em: https://rivista-statistica.unibo.it/article/view/4133. Acesso em: 24 nov. 2024.