VISHWAKARMA, Gajendra K. K.; SINGH, Housila P. P.; SINGH, Sarjinder. A family of estimators of population mean using multi-auxiliary variate and post-stratification. Nonlinear Analysis: Modelling and Control, [S. l.], v. 15, n. 2, p. 233–253, 2010. DOI: 10.15388/NA.2010.15.2.14356. Disponível em: https://www.journals.vu.lt/nonlinear-analysis/article/view/14356. Acesso em: 11 apr. 2025.