1. Department of Software Engineering; Faculty of Computer Science and Information Technology; University of Malaya; Kuala Lumpur Malaysia
2. Center of Systems and Machines Intelligence; College of Engineering; Universiti Tenaga Nasional; Kajang Malaysia
3. Department of Curriculum and Instructional Technology; Faculty of Education; University of Malaya; Kuala Lumpur Malaysia
4. Department of Computer Science and Information Engineering; National Taiwan University of Science and Technology; Taipei Taiwan