OKAFOR, F. C. Treatment of unit non-response in two-stage sampling with partial replacement of units. Statistica, [S. l.], v. 64, n. 3, p. 511–521, 2004. DOI: 10.6092/issn.1973-2201/55. Disponível em: https://rivista-statistica.unibo.it/article/view/55. Acesso em: 20 apr. 2024.