Yater Tato, B.K. Singh. Generalized Class of Exponential Chain Ratio-cum-Chain Product Type Estimator for Finite Population Mean under Double Sampling Scheme in Presence of Non-Response. GJSFR [Internet]. 2015 May 15 [cited 2024 May 6];15(F7):23-35. Available from: https://journalofscience.org/index.php/GJSFR/article/view/1647