1. Department of MIT, South Eastern University of Sri Lanka, Oluvil, Sri Lanka
2. Faculty of Islamic Technology, Universiti Islam Sultan Sharif Ali, Bandar Seri Begawan, Brunei
3. Electrical Engineering Department, College of Engineering, Najran University, Najran, Saudi Arabia
4. Information Systems Department, College of Computer Sciences and Information Systems, Najran University, Najran, Saudi Arabia