Hoang Thi Dao, Dao Minh Phuong, and Hoang Thi Phuong. “Pertamina’s Corporate Strategy - Action Plan to 2025”. Petrovietnam Journal 70 (July 20, 2020): 33 - 41. Accessed May 25, 2026. https://pvj.com.vn/index.php/TCDK/article/view/325.