Rachokarn, Thanapanang, and Nuanpan Lawson. “An Efficient General Family of Estimators for Population Mean in the Presence of Non-Response”. Journal of Mathematical and Fundamental Sciences 49, no. 3 (September 11, 2017): 283-293. Accessed October 31, 2025. https://journals.itb.ac.id/index.php/jmfs/article/view/4692.