M. Oktaviandri and K. K. Foong, “Design and Development of Visitor Management System”, Mekatronika : J. Intell. Manuf. Mechatron., vol. 1, no. 1, pp. 73–79, Jan. 2019, Accessed: Apr. 04, 2025. [Online]. Available: https://journal.ump.edu.my/mekatronika/article/view/152