A. B. . Laksono, A. Bachri, and A. F. Willyanto, “Cafe Order Notification Tools Using Wireless with Point to Multipoint Communication Model”, EICCS, vol. 4, no. 1, pp. 106–112, Nov. 2023, Accessed: Aug. 24, 2026. [Online]. Available: https://bookseries.uthm.edu.my/index.php/eiccs/article/view/51