Aidil, Siti Balqish, and Alias Masek. “IoT-Based Occupancy Display System in Office”. Research and Innovation in Technical and Vocational Education and Training 2, no. 1 (March 30, 2022): 11–20. Accessed May 4, 2024. https://publisher.uthm.edu.my/periodicals/index.php/ritvet/article/view/7148.