J. Al-Ashow, Rasha, and Nabeel S. Othman. “Spectrophotometric Determination of Tetracycline by Coupling With Diazotised 4-Aminoantipyrine in Presence of Cetylpyridinium Chloride”. Rafidain Journal of Science 23, no. 3 (April 1, 2012): 72–84. Accessed September 28, 2025. https://jamh.uomosul.edu.iq/index.php/rsci/article/view/46919.