Singh, Housila P., and Vishal Mehta. 2014. “AN ALTERNATIVE ESTIMATION OF THE SCALE PARAMETER FOR MORGENSTERN TYPE BIVARIATE LOG-LOGISTIC DISTRIBUTION USING RANKED SET SAMPLING”. Journal of Reliability and Statistical Studies 7 (01):19-29. https://journals.riverpublishers.com/index.php/JRSS/article/view/21309.