M. A. Saeed, A., عبد, E. S. Salih, and الهام. “Spectrophotometric Determination of Mesalazine, Carbamazepine and Diclofenac Sodium in Pharmaceutical Preparations by Using Nile Blue Dye”. Journal of Education and Science (JES), vol. 28, no. 4, Dec. 2019, pp. 48-69, doi:10.33899/edusj.1970.163325.