«HESTER, R.E y R.M. HARRISON. Minning and its environmental impact. Cambridge: The Royal Society of Chemistry, 1994 (Issues in environmental science and technology, nro. 1)». Revista de Química 11, no. 1 (abril 8, 1997): 124. Accedido septiembre 19, 2026. https://revistas.pucp.edu.pe/index.php/quimica/article/view/5301.