DR. VYAS DUBEY; DR. MINAL UPRETY; UJJWAL DUBEY. Estimating Population Mean in Sample Surveys. International Journal of Engineering and Management Research, [S. l.], v. 10, n. 6, p. 106–117, 2020. DOI: 10.31033/ijemr.10.6.15. Disponível em: https://ijemr.vandanapublications.com/index.php/ijemr/article/view/179. Acesso em: 3 jul. 2024.