Thi Lan Anh N, Thi Mai Hanh N, Thi Thuy Dung D, Linh Chi N. National oil companies in relationship with the states. PVJ [Internet]. 2017Feb.27 [cited 2026Apr.19];20:54 -61. Available from: https://pvj.com.vn/index.php/TCDK/article/view/129