Javed, Muqaddas, Zahoor Ahmad, and Muhammad Hanif. “Replication Variance Estimation under Two-Phase Sampling in the Presence of Non-Response”. Statistica 74, no. 3 (January 1, 2014): 247–265. Accessed December 4, 2024. https://rivista-statistica.unibo.it/article/view/5304.