Putri DPM, Supriyono H. Rancang Bangun Sistem Presensi Berbasis QR Code Menggunakan Framework Codeigniter (Studi Kasus Kehadiran Asisten Praktikum). INSYPRO [Internet]. 2019 May 30 [cited 2025 Jun. 7];4(1):17-26. Available from: https://journal.uin-alauddin.ac.id/index.php/insypro/article/view/6987