1. Business Information Technology Division, Department of Statistics, Faculty of Commerce and Accountancy, Chulalongkorn University, Bangkok, Thailand
2. Department of Information Technology & Decision Sciences, Old Dominion University, Norfolk, VA, USA
3. Department of Computer Science, Government Bikram College of Commerce, Patiala, India
4. University Centre for Research & Development, Department of Computer Science and Engineering, Chandigarh University, Gharuan, Mohali, Punjab
5. Business Information Technology Division, Department of Marketing, Faculty of Commerce and Accountancy, Chulalongkorn University, Bangkok, Thailand