BHUSHAN, S.; PRATAP PANDEY, A. Optimal Estimation of Population Mean in the Presence of Random Non-Response. Thailand Statistician, [S. l.], v. 21, n. 3, p. 616–630, 2023. Disponível em: https://ph02.tci-thaijo.org/index.php/thaistat/article/view/250070. Acesso em: 16 sep. 2026.