Thi Phuong, Hoang, and Dang Thi Thuy Dung. “Crude Oil Stockpiling in Japan and Korea and Lessons for Vietnam”. Petrovietnam Journal 30 (March 27, 2017): 50 - 57. Accessed April 17, 2026. http://www.tapchidaukhi.com/index.php/TCDK/article/view/135.