SINGH, H. P. .; NIGAM, P. . Efficient Method of Estimating the Finite Population Mean Based on Two Auxiliary Variables in the Presence of Non-Response Under Stratified Sampling. Journal of Reliability and Statistical Studies, [S. l.], v. 14, n. 01, p. 223–242, 2021. DOI: 10.13052/jrss0974-8024.14111. Disponível em: https://journals.riverpublishers.com/index.php/JRSS/article/view/20437. Acesso em: 3 jun. 2026.