TRẦN, M. T. . The role of Tuyen Quang’s Central Safe Zones in the war against The French. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY, [S. l.], v. 5, n. 11, p. 99–109, 2020. DOI: 10.51453/2354-1431/2019/223. Disponível em: https://tckh.daihoctantrao.edu.vn/index.php/sjttu/article/view/223. Acesso em: 7 may. 2024.