“Spectrophotometric Method for the Determination of Tetracycline and Doxycycline by Oxidizing Coupling Reaction with 4-aminoantipyrine” (2017) Ibn AL-Haitham Journal For Pure and Applied Sciences, 28(3), pp. 154–168. Available at: https://jih.uobaghdad.edu.iq/index.php/j/article/view/150 (Accessed: 2 May 2024).