Lutfhi Jaya Rizaldi and Rita Wahyuni Arifin 2025. SISTEM KEHADIRAN SEMINAR QR-CODE TERINTEGRASI WEBSITE BERBASIS INTERNET OF THINGS. Jurnal INSTEK (Informatika Sains dan Teknologi). 10, 2 (Oct. 2025), 376–388. DOI:https://doi.org/10.24252/instek.v10i2.57593.