Siegfried, Patrick, and Nauryzbek Amangeldiyev. “The Concepts, Applications, and Challenges of the Internet of Things”. IT Journal Research and Development 7, no. 1 (December 31, 2022): 1–12. Accessed May 20, 2024. https://journal.uir.ac.id/index.php/ITJRD/article/view/9110.