BAC, Bui Hoang; DUNG, Nguyen Tien. Finding nanotubular halloysite at Lang Dong kaolin deposit, Phu Tho province. <b>Vietnam Journal of Earth Sciences</b>, <i>[S. l.]</i>, v. 37, n. 4, p. 299–306, 2015. DOI: 10.15625/0866-7187/37/4/8058. Disponível em: http://vjes.vast.vn/jse/article/view/8058. Acesso em: 8 nov. 2025.