Hamad Shehab AL-Obaidi, Omar. 2012. “Preparation and Characterization, Theoretical Treatment and Antibacterial of Mixed Ligand Complexes of Indol and N-Methyl Imidazol With Some Metal Ions”. Asian Journal of Chemistry 24 (11):5275-78. https://asianpubs.org/index.php/ajchem/article/view/9775.