LUAN, Jinhua et al. Geochemical characteristics and sources of heavy metal elements in the southern and western surface soils of Fengdu County, Chongqing. Highlights in Science, Engineering and Technology, [S. l.], v. 91, p. 442–450, 2024. DOI: 10.54097/pp1s4m50. Disponível em: https://drpress.org/ojs/index.php/HSET/article/view/20154. Acesso em: 8 jul. 2026.