Pratama, N. P., A. . Triayudi, and D. . Hidayatulloh. “Design-Based Fingerprint Time Attendance System Using IOT With MCU Node ESP8266”. Jurnal Teknik Informatika C.I.T Medicom, vol. 11, no. 1, Mar. 2019, pp. 15-21, doi:10.35335/cit.Vol11.2019.8.pp15-21.