1.
Subhash Kumar Yadav, Himanshu Pandey. A Ratio-cum-Dual to Ratio Estimator of Population Variance Using Qualitative Auxiliary Information Under Simple Random Sampling. Math. J. Interdiscip. Sci. [Internet]. 2013Mar.4 [cited 2024Apr.29];1(2):91-6. Available from: https://mjis.chitkara.edu.in/index.php/mjis/article/view/152