SON, Nguyen Lan Hung; DUNG, Le Trung; VAN, Nguyen Thanh.
Developing bird watching ecotourism combined with education and natural conservation.
VNU Journal of Science: Earth and Environmental Sciences, [S.l.], v. 27, n. 2, june 2011.
ISSN 2588-1094.
Available at: <https://js.vnu.edu.vn/EES/article/view/1504>. Date accessed: 22 dec. 2024.