1. Bina Nusantara University,BINUS Online Learning,Management Department,Jakarta,Indonesia
2. Universiti Malaysia Pahang,Faculty of Industrial Management,Pahang,Malaysia
3. Universitas Andalas,Faculty of Economics,Accounting Department,Padang,Indonesia
4. Universitas Multimedia Nusantara,Faculty of Engineering and Informatics,Department of Information System,Tangerang,Indonesia