NGỌC, Nguyễn; NGÂN, Sái Thị. Waterfalls and Rapids and their touristic potential in Vietnam. <b>Vietnam Journal of Earth Sciences</b>, <i>[S. l.]</i>, v. 35, n. 2, p. 152–162, 2014. DOI: 10.15625/0866-7187/35/2/3659. Disponível em: https://cip.vast.vn/jse/article/view/3659. Acesso em: 2 apr. 2026.