Singh, Satinder Pal, and Shashi Bahl. “Estimation of Population Mean Using Auxiliary Information in Stratified Sampling on Successive Occasion Using Ratio Method”. Annals of Agricultural Research 34, no. 4 (February 27, 2016). Accessed June 27, 2026. https://epubs.icar.org.in/index.php/AAR/article/view/37895.