Bhushan S, Pratap Pandey A. Optimal Estimation of Population Mean in the Presence of Random Non-Response. Thail. Stat. [Internet]. 2023 Jun. 28 [cited 2024 May 19];21(3):616-30. Available from: https://ph02.tci-thaijo.org/index.php/thaistat/article/view/250070