Hartono, T., Henry, B. N., Nurm, S., Pasha, L., & Julianingsih, D. . (2024). The Importance Increasing Attendance Efficiency Accuracy with Presence System in Era Industrial Revolution 4.0. International Journal of Cyber and IT Service Management, 4(2), 133–142. https://doi.org/10.34306/ijcitsm.v4i2.168