Vuong Xuan C, Bui Duy H, Tran Trung H. Macroscopic evaluation of road traffic safety using Qgis: A case study of Tuyen Quang province. vn [Internet]. 1736874000 [cited 21tháng 12025];76(1):79-8. Available from: https://tcsj.utc.edu.vn/index.php/tcgtvt/article/view/2028