1. Operations Management Section, School of Management, Universiti Sains Malaysia, Minden, Penang, Malaysia
2. Faculty of Economics and Business, Universiti Malaysia Sarawak , Kota, Samarahan, Sarawak, Malaysia
3. Department of Quantitative Methods and Information Systems, College of Business Administration, Safat, Kuwait
4. Technology Management Lab, School of Management, Universiti Sains Malaysia, Minden, Penang, Malaysia