Fitriyah Lubis A, Basari B. Development of Proximity-Based COVID-19 Contact Tracing System Devices for Locally Virus Spread Prevention. J. Ilm. Tek. Elektro Komput. Dan Inform [Internet]. 2022 May 16 [cited 2024 Nov. 23];8(1):144-56. Available from: https://journal.uad.ac.id/index.php/JITEKI/article/view/23697