Wrushali A. Panchale, and Ravindra L. Bakal. “First-Order Derivative Spectrophotometric Estimation of Gemifloxacin Mesylate and Ambroxol HCl in Tablet Dosage Form”. GSC Biological and Pharmaceutical Sciences, vol. 14, no. 2, Feb. 2021, pp. 029-36, doi:10.30574/gscbps.2021.14.2.0034.