Kumar Singh, Sudesh, and C.P. Singh Chandel. 2010. “Electrochemical Studies on Mixed Ligand Complexs of Lead Ion With DL-3(3,4-Dihydroxy Phenyl) Alanine and Some Dicarboxylic Acids ”. Asian Journal of Chemistry 14 (1):53-56. https://asianpubs.org/index.php/ajchem/article/view/21949.