Indonesia HG, Anshori MA, Hadiwiyatno H. Implementation of EDC Devices for Employee Field Activity Attendance Based on IoT Using ID Cards. jartel [Internet]. 2026 Jun. 30 [cited 2026 Jul. 6];16(2):240-7. Available from: https://jurnal.polinema.ac.id/index.php/jartel/article/view/9591