Parmar, R., F. Tandel, and N. Patel. “RATIO SPECTRA DERIVATIVE UV SPECTROPHOTOMETRIC METHOD FOR SIMULTANEOUS ESTIMATION OF KETOROLAC TROMETHAMINE AND PHENYLEPHRINE HYDROCHLORIDE IN IMMEDIATE RELEASE TABLET”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 7, no. 11, Nov. 2015, pp. 13-16, https://journals.innovareacademics.in/index.php/ijpps/article/view/8265.