Neamhom, T. “Use of Agricultural Residues to Remove Iron from Groundwater in Modified Airlift Aerator: DOI: 10.32526/Ennrj.17.3.2019.23”. Environment and Natural Resources Journal, vol. 17, no. 3, Apr. 2019, pp. 58-67, https://ph02.tci-thaijo.org/index.php/ennrj/article/view/182110.