1. Gadde Srinivas Rao:
Department of Statistics, School of Mathematical Sciences, CNMS, The University of Dodoma, Dodoma, PO. Box: 259, Tanzania.
2. Muhammad Aslam:
Department of Statistics, Faculty of Science, King Abdulaziz University, Jeddah
3. Muhammad Azam:
Department of Statistics and Computer Science, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
4. Chi-Hyuck Jun:
Department of Industrial and Management Engineering, POSTECH, Pohang 790-784, Republic of Korea