THUY, Hoang Luu Thu. Approach Geography in Environmental Research (For example, Nghe An province). <b>Vietnam Journal of Earth Sciences</b>, <i>[S. l.]</i>, v. 35, n. 4, p. 395–402, 2014. DOI: 10.15625/0866-7187/35/4/4125. Disponível em: http://vjes.vast.vn/jse/article/view/4125. Acesso em: 8 nov. 2025.