HAFIZHAH, Nurul; HIDAYAT, Ahmad Tri; WIJAYANTI, Yuli. Optimalisasi Pengembangan Sistem Presensi Karyawan Menggunakan Extreme Programming dan Teknologi QR Code. Jurnal Janitra Informatika dan Sistem Informasi, Indonesia, v. 5, n. 1, p. 1–13, 2025. DOI: 10.59395/x78mnf30. Disponível em: https://janitra.org/index.php/home/article/view/199. Acesso em: 7 oct. 2026.