1. MSc, Lecturer, Researcher, Faculty of Islamic Studies, Department of Islamic Economic Law, Universitas Muhammadiyah Surakarta [Muhammadiyah Surakarta University]
2. Undergraduate, Research Assistant, Faculty of Islamic Studies, Department of Islamic Economic Law, Universitas Muhammadiyah Surakarta [Muhammadiyah University of Surakarta], Indonesia
3. Master, Lecturer, Researcher, Faculty of Islamic studies, Department of Islamic Teaching, Institut Agama Islam Negeri (IAIN) Kediri [State Islamic Institute Kediri], Indonesia