RAMAN SINHA, R.; KHANNA, B. Efficient Estimation for Ratio of Means Using Dual Auxiliary Information under Non-Response. Thailand Statistician, [S. l.], v. 22, n. 3, p. 736–749, 2025. Disponível em: https://ph02.tci-thaijo.org/index.php/thaistat/article/view/257940. Acesso em: 16 sep. 2026.