Sh. Mahmood, Hana. “Some Applications of High Performance Liquied Chromatography -Determination of Trimethoprim”. Rafidain Journal of Science 19, no. 5 (October 1, 2008): 1–9. Accessed September 29, 2025. https://jwups.uomosul.edu.iq/index.php/rsci/article/view/46765.