Van Kieu, Nguyen, Bui Viet Dung, Hoang Bui Huy, and Tuan Nguyen Quang. “Turbidite Facies of Co To Archipelago, Northeast Vietnam”. Petrovietnam Journal 70 (August 12, 2021): 4 - 15. Accessed April 28, 2026. https://pvj.vn/index.php/TCDK/article/view/732.