Duc Thang Nguyen, Assoc. Prof. Thi Thuc Nguyen, Assoc. Prof. Thi Lan Huong Nguyen, and Hien Mai. “ECOTOURISM IN THANH HOA, VIETNAM”. International Education and Research Journal (IERJ) 7, no. 8 (August 15, 2021). Accessed November 3, 2024. http://ierj.in/journal/index.php/ierj/article/view/2338.