Phương, Tạ Hòa, Nguyễn Hiệu, Nguyễn Thùy Dương, Hoàng Thị Minh Thảo, Bùi Văn Đông, and Nguyễn Thị Thu Cúc. “Some Geological-Geomorphological Heritages of Ba Vi Area - Basis for Building a Geopark in Hanoi”. Vietnam Journal of Earth Sciences 35, no. 3 (February 20, 2014): 193–203. Accessed November 22, 2024. https://vjs.ac.vn/index.php/jse/article/view/3679.