Chi, Cung Thuong, John W. Geissman, Hoang Van Quy, Nguyen Thi Phuong Dung, and Nguyen Thi Hoc. “New Paleomagnetic Results of Upper Permian - Lower Triassic Volcanic Sequences from the Hoa Binh Area, Northwest Vietnam”. Vietnam Journal of Earth Sciences 36, no. 4 (December 31, 2014): 413–423. Accessed April 25, 2024. https://vjs.ac.vn/index.php/jse/article/view/6429.