TRAN, Van Thuan et al. Optimization of congo red removal by adsorption onto NiFe2O4/GO nanocomposite. Vietnam Journal of Science, Technology and Engineering, [S.l.], v. 59, n. 3, p. 3-6, sep. 2017. ISSN 2525-2461. Available at: <http://vietnamscience.vn/index.php/VJSTE/article/view/61>. Date accessed: 20 oct. 2019.