1. Universitas Sebelas Maret (UNS),Department of Informatics,Surakarta,Indonesia
2. Universitas Negeri Malang,Department of Educational Technology,Malang,Indonesia
3. Universitas Negeri Padang,Department of Educational Technology,West Sumatra,Indonesia
4. Educational Research Center,Badan Riset dan Inovasi Nasional,Jakarta,Indonesia