A comparative study on dispersivity of Arsenic among Surma, Sari and Volaganj sand. BRAC University Journal, [S. l.], v. 8, n. 1 & 2, 2026. DOI: 10.64501/cyw9es11. Disponível em: http://103.69.149.153/index.php/buj/article/view/53.. Acesso em: 12 jun. 2026.