Yasin, W. ., M. . Tayyab, and M. . Hanif. “Design of Improved EWMA Control Chart for Monitoring the Process Mean Using New Median Quartile Double Ranked Set Sampling”. Journal of Reliability and Statistical Studies, vol. 14, no. 02, Dec. 2021, pp. 651-68, doi:10.13052/jrss0974-8024.14213.