Nghi, T., Mai, D., Phuong, T., Thanh, D., Thai, N., Lan, N., & Hong, N. (2011). Projections for Quang Binh tourism and solutions for a sustainable economic development. VNU Journal Of Science: Earth And Environmental Sciences, 27(3). Retrieved from https://js.vnu.edu.vn/EES/article/view/1512