Raghav, Y. S., I. Ali, and A. Bari. 2013. “A COMPROMISE ALLOCATION IN MULTIVARIATE STRATIFIED SAMPLING IN PRESENCE OF NON-RESPONSE”. Journal of Nonlinear Analysis and Optimization: Theory & Applications (JNAO) 5 (1):67-80. https://ph03.tci-thaijo.org/index.php/jnao/article/view/2733.