Raskar MA, Mungse SS, Kate PA, Godge GR. Validated Simultaneous Derivative Spectrophotometric Estimation of Diflunisal and Lignocaine in Bulk and Pharmaceutical Formulation: Spectrophotometric Estimation of Diflunisal and Lignocaine. J. Drug Delivery Ther. 2023;13(8):51-55. doi:10.22270/jddt.v13i8.6166