Kandaswamy, P., and S. Jayarama Reddy. “Electrochemical Reduction Behaviour of Benzophenones and Phenylhydrazones-A Comparative Account ”. Asian Journal of Chemistry, vol. 4, no. 1, Mar. 2010, pp. 58-64, https://asianpubs.org/index.php/ajchem/article/view/25002.