Putra, I Gede Sujana Eka, and Ni Luh Putu Labasariyani. “Lecturer Attendance System Based on Near Field Communication Technology”. International Journal of Scientific Research in Computer Science and Engineering, vol. 9, no. 1, Feb. 2021, pp. 25-31, https://ijsrcse.isroset.org/index.php/j/article/view/413.