THANH, Pham Viet et al. Evaluate the Economic Value of the Recreational Services of the Hon Yen Complex in Phu Yen Province. VNU Journal of Science: Earth and Environmental Sciences, [S.l.], v. 41, n. 1, feb. 2025. ISSN 2588-1094. Available at: <https://js.vnu.edu.vn/EES/article/view/5174>. Date accessed: 02 apr. 2025. doi: https://doi.org/10.25073/2588-1094/vnuees.5174.