Nalini, D., A. Shamitha Begum, P. Manimekalai, and S. Kousalya. 2011. “Evaluation of Corrosion Resistance of 5-Pyrazolones on Mild Steel in Acid Media”. Asian Journal of Chemistry 23 (10):4341-46. https://asianpubs.org/index.php/ajchem/article/view/10852.