M. A. S. Manan and M. F. Zakaria, “Outdoor Navigation under Tree Canopy for Unmanned Ground Vehicle (UGV)”, EEEE, vol. 3, no. 2, pp. 450–457, Nov. 2022, Accessed: Aug. 15, 2026. [Online]. Available: https://periodical.uthm.edu.my/index.php/eeee/article/view/8906