Mehta, H.T., and A.G. Mehta. “Synthesis of Acid Dyes Based on 4-Hydroxy-1-Phenyl-2-Oxoquinoline System and Their Application”. Asian Journal of Chemistry 11, no. 2 (March 30, 2010): 515–518. Accessed August 26, 2024. https://asianpubs.org/index.php/ajchem/article/view/23314.