Mohamed Y. Dhamra, Esraa A.Ahmad. 4-aminosalicylic acid as a coupling reagent for spectrophotometric determination of mesalazine in an aqueous medium. Tikrit J. Pure Sci. [Internet]. 2024 Jun. 25 [cited 2024 Jun. 30];29(3):18-27. Available from: http://tjps.tu.edu.iq/index.php/tjps/article/view/1542