Y. L. Ong and N. Abdullah, “Design and Development of Ferry E-Ticketing System with QR Code based on IoT Technology”, aitcs, vol. 4, no. 1, pp. 308–326, Jul. 2023, Accessed: Apr. 08, 2026. [Online]. Available: https://penerbit.uthm.edu.my/periodicals/index.php/aitcs/article/view/7671