Popuri, S. R., Jammala, A., Suresh Reddy, K. V. N. and Abburi, K. (2007) “Biosorption of hexavalent chromium using tamarind (Tamarindus indica) fruit shell-a comparative study”, Electronic Journal of Biotechnology. Valparaíso, Chile, 10(3), pp. 0–0. Available at: https://preprints.pucv.cl/index.php/ejbiotechnology/article/view/v10n3-11 (Accessed: 20 September 2024).