Hafedh, Fadhel R. “Synthesis and Spectroscopic Study of Metal Complexes With New Schiff Base Derived from 2-Acetylpyridine and Methionine Amino Acid”. Al-Mustansiriyah Journal of Science 27, no. 4 (February 26, 2017). Accessed September 26, 2022. https://mjs.uomustansiriyah.edu.iq/index.php/MJS/article/view/24.