Bùi Hoài Sơn. “Solutions to Improve Social Awareness on the Role and Importance of World Heritage”. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY 4, no. 9 (December 8, 2020): 5–9. Accessed May 4, 2024. https://tckh.daihoctantrao.edu.vn/index.php/sjttu/article/view/349.