PHẠM, H. VALUE OF ANCIENT WRITINGS OF DAO ETHNIC GROUP IN TUYEN QUANG. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY, [S. l.], v. 9, n. 2, 2023. DOI: 10.51453/2354-1431/2023/924. Disponível em: https://tckh.daihoctantrao.edu.vn/index.php/sjttu/article/view/924. Acesso em: 20 may. 2024.