Setiawan, Arif, and Dwi Nur Fitria Agustin Rahayu. “SISENSI: QR Code-Based Academic Attendace System”. Urecol Journal. Part E: Engineering 2, no. 1 (June 23, 2022): 29–36. Accessed May 7, 2024. https://e-journal.urecol.org/index.php/uje/article/view/141.