Modified Regression-Cum-Dual Mean Imputation Schemes for Estimating Population Mean Under Two-Phase Simple Random Sampling . Journal of Pure and Applied Sciences (Science Forum), [S. l.], v. 26, n. 2, 2026. Disponível em: https://atbuscienceforum.com.ng/index.php/jpas/article/view/282. Acesso em: 10 may. 2026.