okdah, Malek, and kholoud kassab. “Analytical Study for the Determination of Norfloxacin in Pure and Pharmaceutical Formulations Using Alizarin by Visible Spectrophotometric Method”. Tishreen University Journal -Basic Sciences Series 40, no. 2 (October 28, 2018). Accessed November 24, 2024. https://journal.tishreen.edu.sy/index.php/bassnc/article/view/4354.