Napattchan Dansawad. (2019) A Class of Exponential Estimator to Estimate the Population Mean in the Presence of Non-Response. <i>Naresuan University Journal: Science and Technology</i>, <i>27</i>(4), 20-26.Napattchan Dansawad. "A Class of Exponential Estimator to Estimate the Population Mean in the Presence of Non-Response". Naresuan University Journal: Science and Technology 27 (2019):20-26.Napattchan Dansawad. A Class of Exponential Estimator to Estimate the Population Mean in the Presence of Non-Response. Naresuan University Graduate School:ม.ป.ท. 2019.