Papanna, R. K., J. B. Krishnegowda, and P. Nagaraja. “SPECTROPHOTOMETRIC METHOD FOR THE DETERMINATION OF CEFEPIME, CEFAZOLIN SODIUM AND CEFALOTHIN SODIUM IN PURE AND PHARMACEUTICAL DOSAGE FORMS BY USING NINHYDRIN”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 7, no. 5, May 2015, pp. 194-9, https://journals.innovareacademics.in/index.php/ijpps/article/view/5240.