Idris, Farah 'Aini, and Nurfarina Zainal. “Integration of Web-Based Key Booking and Monitoring System With Smart Key Rack for University Application”. Evolution in Electrical and Electronic Engineering 3, no. 1 (June 15, 2022): 225–234. Accessed July 1, 2024. https://publisher.uthm.edu.my/periodicals/index.php/eeee/article/view/6798.