Sharma, R.C., and V.K. Khar. “Synthesis, Characterization and Antimicrobial Studies of Some Macrocyclic Ligands and Their Nickel(II) Complexes ”. Asian Journal of Chemistry 10, no. 3 (March 30, 2010): 467–471. Accessed August 26, 2024. https://asianpubs.org/index.php/ajchem/article/view/23659.