Indonesia, Habib Gumelar, Mohammad Abdullah Anshori, and Hadiwiyatno Hadiwiyatno. “Implementation of EDC Devices for Employee Field Activity Attendance Based on IoT Using ID Cards”. JURNAL JARTEL: Jurnal Jaringan Telekomunikasi 16, no. 2 (June 30, 2026): 240–247. Accessed July 6, 2026. https://jurnal.polinema.ac.id/index.php/jartel/article/view/9591.