Hamkah, Robert Sihotang, Vera Th. C. Siahaya. “Preliminary Study on National Road Condition of Ambon City, Indonesia ”. International Journal of Advanced Science and Technology 29, no. 05 (June 6, 2020): 10852-10866. Accessed May 3, 2024. http://sersc.org/journals/index.php/IJAST/article/view/25095.