1. Faculty of Computer Science & Information System; Thamar University; Thamar Republic of Yemen
2. LAB, FCT-DEEI; Universidade Algarve Portugal; Faro Portugal
3. School of Computer Science, Faculty of Information Science and Technology; Universiti Kebangsaan Malaysia; Selangor Malaysia
4. Department of Computer Engineering, Faculty of Engineering and Technology; The University of Jordan; Amman Jordan