PRAJAPATI ARUN M, and SONI UMANG P. “DEVELOPMENT AND VALIDATION OF REVERSE PHASE HIGH PERFORMANCE LIQUID CHROMATOGRAPHY METHOD FOR SIMULTANEOUS ESTIMATION OF TAPENTADOL HYDROCHLORIDE AND LORNOXICAM IN SYNTHETIC MIXTURE”. International Journal of Pharmaceutics and Drug Analysis, vol. 2, no. 4, Apr. 2014, pp. 319-24, https://ijpda.org/index.php/journal/article/view/47.