SRINIVASAN, R., and A.N. MOHAMED KASIM. “Cooxidation of Aromatic Anils and Oxalic Acid by Chromic Acid in Aqueous Acetic Acid Medium”. Asian Journal of Chemistry 21, no. 9 (March 30, 2010): 6909–6914. Accessed December 15, 2025. https://asianpubs.org/index.php/ajchem/article/view/12163.