Duong, Nguyen Thuy, Nguyen Thi Nhu Huong, Nguyen Van Huong, & Ta Hoa Phuong.
" Assessment of Geoheritage of Geosites in Dong Van District, Ha Giang Province." <em>VNU Journal of Science: Earth and Environmental Sciences</em> [Online], 35.1 (2019): n. pag. Web. 23 Apr. 2024