Murni, D., N. Nurkolis, and M. Muhtarom. “Development of a QR Code-Based Digital Attendance System to Improve the Efficiency of Student Attendance Management and Principal Decision-Making”. Jurnal Pendidikan Terapan, vol. 4, no. 3, July 2026, pp. 230-42, doi:10.61255/jupiter.v4i3.1285.