SINGH, P.; KUMAR SINGH, R. .; MISHRA, M. . Almost Unbiased Optimum Ratio-type Estimator for Estimating Population Mean in Stratified Sampling in Presence of Non-response. Brazilian Journal of Biometrics, [S. l.], v. 42, n. 1, p. 68–77, 2024. DOI: 10.28951/bjb.v42i1.656. Disponível em: http://www.biometria.ufla.br/index.php/BBJ/article/view/656. Acesso em: 13 may. 2024.