1. MSc, Lecturer, Researcher, Faculty of Islamic Studies, Department of Islamic Economic Law, Universitas Muhammadiyah Surakarta [Muhammadiyah Surakarta University]
2. Ph.D., Associate Professor, Researcher, Faculty of Islamic Studies, Department of Islamic Economic Law, Universitas Muhammadiyah Surakarta [Muhammadiyah Surakarta University]
3. MSc, Lecturer, Researcher, Faculty of Business and Economics, Department of Islamic Economic, Muhammadiyah Lamongan University
4. Ph.D., Researcher, Faculty of Economy and Business, Department of Islamic Economic, Airlangga University