Development of an Attendance System Based on Cloud / Fog Computing with Data Recovery Capability. Iraqi Journal of Science, [S. l.], v. 61, n. 5, p. 1190–1201, 2020. DOI: 10.24996/ijs.2020.61.5.26. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/1560.. Acesso em: 27 dec. 2024.