Tawfeeq , Nour, and Mohammed Al-Enizz. 2025. “Indirect Spectrophotometric Determination of Phenylephrine Hydrochloride Using Potassium Permanganate and Toluidine Blue Dye”. Journal of Wahj Al-Ulom for Pure Sciences 1 (3). https://doi.org/10.33899/jwups.v1i3.28976.