Buabarn Poonperm. (1998) Speciation of vanadium cations in sulfuric acid by differential pulse polarographic and cyclic voltammetric techniques. Mahidol University,:ม.ป.ท.Buabarn Poonperm. 1998. Speciation of vanadium cations in sulfuric acid by differential pulse polarographic and cyclic voltammetric techniques. ม.ป.ท.:Mahidol University,;Buabarn Poonperm. Speciation of vanadium cations in sulfuric acid by differential pulse polarographic and cyclic voltammetric techniques. ม.ป.ท.:Mahidol University, 1998. Print.