“REVERSE PHASE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY (RP-HPLC) METHOD DEVELOPMENT AND VALIDATION FOR SIMULTANEOUS ESTIMATION OF SILDENAFIL CITRATE AND DULOXETINE HYDROCHLORIDE IN COMBINE DOSAGE FORM”, NUJPS, vol. 10, no. 2, pp. 21–38, Aug. 2024, doi: 10.5281/.