Ermin, Ermin, Rendra Soekarta, and Muhammad Insan Abdillah. 2023. “Utilising QR-Code of Covid-19 Vaccine for Attendance Using Extreme Programming Method: PEMANFAATAN QR-CODE VAKSIN COVID-19 UNTUK ABSENSI MENGGUNAKAN METODE EXTREME PROGRAMMING”. Antivirus : Jurnal Ilmiah Teknik Informatika 17 (2), 193-202. https://doi.org/10.35457/antivirus.v17i2.3217.