1. Universitas Multi Data Palembang,Faculty of Computer Science and Engineering,Palembang,Indonesia,30113
2. Universitas Sriwijaya,Faculty of Computer Science,Palembang,Indonesia,30139
3. Universitas Sriwijaya,Faculty of Engineering,Palembang,Indonesia,30139
4. Universitas Sultan Ageng Tirtayasa,Faculty of Teacher Training and Education,Banten,Indonesia,42163