NGHI, Tran et al. Projections for Quang Binh tourism and solutions for a sustainable economic development. VNU Journal of Science: Earth and Environmental Sciences, [S.l.], v. 27, n. 3, sep. 2011. ISSN 2588-1094. Available at: <https://js.vnu.edu.vn/EES/article/view/1512>. Date accessed: 25 nov. 2024.