1. Department of Mathematics, Faculty of Science, Al-Azhar University, Cairo, Egypt
2. Department of Computer Engineering, Bandirma Onyedi Eylul University, Balikesir, Turkey
3. Department of Computer Sciences and Information Technology, University of Kotli Azad Jammu and Kashmir, Kotli, Azad Kashmir, Pakistan
4. Examination Branch, Dibrugarh University, Dibrugarh, India