Ahmed Mohammad Al-Rashidy, Asmaa. “Comparative Spectrophoto Metric Determination of H Rip Rotidinehydrochloride Drug (TPH) Using Oxidizing Agents Potassiumpermanganate & Potassium Dichromate”. Tikrit Journal of Pharmaceutical Sciences, vol. 5, no. 1, Apr. 2023, pp. 44-51, doi:10.25130/tjphs.2009.5.6.44.51.