LÊ THỊ, M. N. Bổ Sung. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY, [S. l.], v. 7, n. 23, 2021. DOI: 10.51453/2354-1431/2021/637. Disponível em: https://tckh.daihoctantrao.edu.vn/index.php/sjttu/article/view/637. Acesso em: 21 may. 2022.