Jane, J., E.V.S. Subrahmanyam, and D. Sathyanarayana. “Spectrophotometric Determination of Certain Cephalosporins”. Asian Journal of Chemistry 18, no. 1 (March 30, 2010): 721–723. Accessed August 26, 2024. https://asianpubs.org/index.php/ajchem/article/view/21438.