Tien, P. V., M. T. Thanh Thuy, N. T. Van Anh, M. T. Xuan, P. T. Tot, L. C. The, and P. T. Binh. “Removal of Ni2+ from Aqueous Solution by Adsorption onto Maize Tree-Trunk Polyaniline Composite”. Vietnam Journal of Chemistry, vol. 54, no. 4, Aug. 2016, p. 429, doi:10.15625/0866-7144.2016-00341.