PONKAEW, C.; LAWSON*, N. New Generalized Regression Estimators Using a Ratio Method and Its Variance Estimation for Unequal Probability Sampling without Replacement in the Presence of Nonresponse. CURRENT APPLIED SCIENCE AND TECHNOLOGY, Bangkok, Thailand, v. 23, n. 2, p. DOI: 10.55003/cast.2022.02.23.007 (27 pages), 2022. DOI: 10.55003/cast.2022.02.23.007. Disponível em: https://li01.tci-thaijo.org/index.php/cast/article/view/253417. Acesso em: 26 aug. 2026.