Le, Trung. “BUS MANAGEMENT AT HO CHI MINH CITY USING GPS AND GIS”. VNUHCM Journal of Science and Technology Development 15, no. 3 (September 30, 2012): 46-53. Accessed May 11, 2025. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/1807.