NGUYEN, Tuan Thanh; VO, Nguyen Du. Developing group of union officials in secondary schools. Dong Thap University Journal of Science, [S. l.], n. 11, p. 8–11, 2014. DOI: 10.52714/dthu.11.12.2014.157. Disponível em: https://dthujs.vn/index.php/dthujs/article/view/1069. Acesso em: 8 sep. 2024.