Ermin, E., Soekarta, R. and Abdillah, M.I. 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 (Nov. 2023), 193-202. DOI:https://doi.org/10.35457/antivirus.v17i2.3217.