1. Institut Teknologi Bandung,Doctoral Program of School of Electrical Engineering and Infomatics,Bandung,Indonesia
2. Universitas Widya Dharma Pontianak,Kalimantan Barat,Indonesia
3. Universitas Sangga Buana,Faculty of Engineering,Electrical Engineering Department,Bandung,Indonesia
4. Universitas Sangga Buana,Bandung,Indonesia
5. Institut Teknologi Bandung,School of Electical Engineering and Informatics,Bandung,Indonesia