B. Dikran, Sarmad, and Ruaa M. Mahmood. 2017. “Spectrophotometric Determination of Diclofenac Sodium Using 2,4-Dinitrophenylhydrazine in Pure Form and Pharmaceutical Preparations”. Ibn AL-Haitham Journal For Pure and Applied Sciences 28 (3): 129-41. https://jih.uobaghdad.edu.iq/index.php/j/article/view/148.