1. Department of Statistics, Government S.A. P.G College, Dera Nawab Sahib, Pakistan
2. Department of Statistics, Government S.E. College, Bahawalpur, Pakistan
3. Department of Statistics, Hacettepe University, Ankara, Turkey
4. Obour High Institute for Management Informatics, Cairo, Egypt
5. Department of Economics and Statistics, University of Mauritius, Reduit, Mauritius