Surya K. Pal, & Housila P. Singh. (2025). A Class of Ratio-Cum-Ratio-Type Exponential Estimators for Population Mean with Sub Sampling the Non-Respondents. Jordan Journal of Mathematics and Statistics, 10(1), 73–94. Retrieved from https://jjms.yu.edu.jo/index.php/jjms/article/view/1014