Abd, M.M., Dikran, S.B. and Mahmood, A.K. (2017) “Spectrophotometric Determination of Tetracycline Hydrochloride in Pure Form and Pharmaceutical Preparation by Coupling with Diazotized Anthranilic Acid”, Ibn AL-Haitham Journal For Pure and Applied Sciences, 30(1), pp. 400–412. doi:10.30526/30.1.1088.