1. Universitas Brawijaya Malang,Department of Physics,Malang,Indonesia
2. Electrical Engineering State Polytechnic of Malang,Malang,Indonesia
3. Universitas Islam Negeri Maulana Malik Ibrahim,Department of Informatics Engineering,Malang,Indonesia
4. Universitas Islam Negeri Maulana Malik Ibrahim,Department of Physics,Malang,Indonesia
5. Constructor University,School of Business, Social & Decision Science,Bremen,Germany