Jayusta, E., Marhalim, M., Immanullah, M. and Reswan, Y. 2024. Robustness Analysis of QR – Code Based and Geolocation Based Attendance System. JURNAL MEDIA INFOTAMA. 20, 2 (Oct. 2024), 517-524. DOI:https://doi.org/10.37676/jmi.v20i2.6510.