THANH, Tran Duc. The Ha Long Bay Geological Wonder. <b>Vietnam Journal of Earth Sciences</b>, <i>[S. l.]</i>, v. 34, n. 2, p. 162–172, 2012. DOI: 10.15625/0866-7187/34/2/1919. Disponível em: https://vjs.ac.vn/jse/article/view/1919. Acesso em: 5 dec. 2025.