Cite
MLA Citation
Javid Shabbir and Sat Gupta. “Estimation of population coefficient of variation in simple and stratified random sampling under two-phase sampling scheme when using two auxiliary variables.” Communications in statistics, vol. 46, no. 16, 2017, pp. 8113–8133. http://access.bl.uk/ark:/81055/vdc_100046691989.0x00003e