DUNG, Tran Tuan. Researching the Challenges Tour Guides Face in Ensuring Sustainable Tourism Development. International Journal of Humanities and Education Development (IJHED), [S. l.], v. 6, n. 2, p. 59–64, 2024. DOI: 10.22161/jhed.6.2.8. Disponível em: https://theshillonga.com/index.php/jhed/article/view/9.. Acesso em: 18 may. 2024.