RAHMAN, Mohammad Arifur; SAMAD, Abdus; ALAM, A. M. Shafiqul. Removal of Arsenic from Groundwater with Low Cost Multilayer Media. Pakistan Journal of Analytical & Environmental Chemistry, [S.l.], v. 11, n. 1, p. 8, june 2010. ISSN 2221-5255. Available at: <http://pjaec.pk/index.php/pjaec/article/view/74>. Date accessed: 13 july 2020.