M. Z. Zulkifily and M. J. . Homam, “Food Delivery Monitoring System with a Line Follower Robot”, EEEE, vol. 2, no. 2, pp. 757–765, Nov. 2021, Accessed: Jul. 18, 2024. [Online]. Available: https://publisher.uthm.edu.my/periodicals/index.php/eeee/article/view/3570