Sha, Ou, Yin Liao, Yun Zhou, Si Liang Zhang, and Weixing Ma. “Determination of Cefoperazone Sodium in Pharmaceutical Formulations by Fe3+-Phenanthroline Spectrophotometry”. Asian Journal of Chemistry 25, no. 11 (June 5, 2013): 5965–5967. Accessed November 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/25_12_18.