1. Universitas Muhammadiyah Yogyakarta,Department of Electrical Engineering,Yogyakarta,Indonesia
2. Universitas Islam Indonesia,Department of Electrical Engineering,Yogyakarta,Indonesia
3. Institute of Southeast Asian Studies Gothe Universitat,Frankfurt am Main,Germany
4. Universitas Cendekia Mitra Indonesia,Department of Psychology,Yogyakarta,Indonesia