Moses, G.S., K.M. Rao, K. Srinivas, J.M.S. Reddy, and A. Ramachandraiah. 2010. “Electrochemical Evaluation of the Equilibrium Constant of Keto-Enol Tautomerism in Piroxicam”. Asian Journal of Chemistry 7 (4):709-13. https://asianpubs.org/index.php/ajchem/article/view/24405.