1. Computer Science Department, University Malaysia Terengganu, Kuala Terengganu 21300, Terengganu, Malaysia
2. Faculty of Computer Information Science, Higher Colleges of Technology, Fujairah Women’s Campus, Fujairah P.O. Box 1626, United Arab Emirates
3. Computer Science Department, Faculty of Information Technology, Al-Hussein Bin Talal University, Ma’an 71111, Jordan