Vo, Hoang, and Thanh Nguyen. “Economic Evaluation on the Tourism and Recreational Values of Can Gio Biosphere Reserve by Adopting the Travel Cost Method”. Science and Technology Development Journal 18, no. 4 (December 30, 2015): 153-165. Accessed November 25, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/935.