N. M. Duc and N. B. Hoang, “Study on risk management in preparation stage for expressway construction projects in Vietnam”, Journal of Transportation Science and Technology (JTST), vol. 10, no. 2, pp. 203–208, Feb. 2022, Accessed: May 10, 2026. [Online]. Available: https://tst.ut.edu.vn/index.php/jtst/article/view/172