Al-amin, M., Sultana, G. N. N., & Hossain, C. F. (2018). IDENTIFICATION OF SILDENAFIL CITRATE AS AN ADULTERANT IN HERBAL PRODUCTS USING HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY WITH PHOTODIODE ARRAY DETECTOR. International Journal of Pharmacy and Pharmaceutical Sciences, 10(9), 15–20. https://doi.org/10.22159/ijpps.2018v10i9.26425