Nguyen Thanh Tuong and Truong Thi Sen (2012) “A STUDY ON THE IMPACTS OF TOURISM ACTIVITIES ON THE NATURAL ENVIRONMENT AND SOLUTIONS TO THE MANAGEMENT OF THE NATIONAL PARK PHONG NHA – KE BANG”, UED Journal of Social Sciences, Humanities and Education, 2(3), pp. 49-56. Available at: https://jshe.vn/index.php/jshe/article/view/77 (Accessed: 23November2024).