Suham Towfiq Ameen, and , Eman Thiab Ahmed Al Samaraee. “Determination of Dextromethorphan Hydreobromide in Pharmaceutical Preparation Using Derivative Spectrophotometric Method”. Tikrit Journal of Pure Science 22, no. 10 (February 2, 2023): 99–109. Accessed May 18, 2024. https://tjps.tu.edu.iq/index.php/tjps/article/view/895.