1. Afe Babalola University,Department of Electrical/Electronics and Computer Engineering,Ado-Ekiti,Nigeria
2. Haramaya University,College of Computing and Informatics,Department of Information Technology,Ethiopia
3. University of Sumer,College of Computer Science and Information Technology,Al-Rifai,Iraq
4. Institute of Technology Faculty of computing, Bahir Dar University,Department of Computer Science,Ethiopia