TÔ NGỌC, T. SUSTAINABLE ECOTOURISM DEVELOPMENT IN HA LONG BAY, QUANG NINH. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY, [S. l.], v. 8, n. 1, 2023. DOI: 10.51453/2354-1431/2022/720. Disponível em: https://tckh.daihoctantrao.edu.vn/index.php/sjttu/article/view/720. Acesso em: 8 may. 2024.