1. Department of Islamic Economic Law, Universitas Islam Negeri Mahmud Yunus Batusangkar, Indonesia
2. Department of Islamic Politics, Universitas Muhammadiyah Yogyakarta, Indonesia
3. Department of Islamic Law, Universitas Islam Negeri Mahmud Yunus Batusangkar, Indonesia
4. Department of Anthropology, Universitas Gadjah Mada-IAS Scholar Foundation Yogyakarta, Indonesia