Nguyen Thi Tuyet, Lan, Giang Nguyen Huy, and Toan Do Manh. “Geochemical Characteristics and Origin of Natural Gas in Song Hong Basin”. Petrovietnam Journal 90 (September 29, 2017): 18 - 22. Accessed July 16, 2026. https://tapchidaukhi.com/index.php/TCDK/article/view/198.