1. Ph.D., Lecturer, Department of Management, Faculty of Economics and Business, Universitas Labuhanbatu
2. Lecturer, Department of Management, Faculty of Economics and Business, Universitas Labuhanbatu
3. Lecturer, Faculty of Economics and Business, Universitas Riau Kepulauan
4. Lecturer, Department of Accounting, Faculty of Economics and Business, Universitas Labuhanbatu