Kumar, S.
(2015).
 A Robust Regression Type Estimator for Estimating Population Mean under Non-Normality in the Presence of Non-Response.
<em>Global Journal Of Science Frontier Research, </em>.
Retrieved from <a href="https://journalofscience.org/index.php/GJSFR/article/view/1649" target="_new">https://journalofscience.org/index.php/GJSFR/article/view/1649</a>