Mehdi Gheisari, M. G.; Atanu Shuvam Roy, A. S. R.; Liefa liao, L. liao; Hong Lan, H. L.; Aaqif Afzaal Abbasi, A. A. A.; Seyed Mojtaba Hosseini Bamakan, S. M. H. B. The Automation Attendance Systems Approaches: A Practical Review. BOHR International Journal of Internet of things, Artificial Intelligence and Machine Learning (BIJIAM) 2022, 1, 23–31.