Soni, Sharda, Manu Sikarwar, and Avnish Sharma. “Mixed-Ligand Complexes of Cu2+, Ni2+, Co2+, Zn2+ With 2,2’-Bipyridine As a Primary Ligand and DL-2-Aminobutanedioic Acid As Secondary Ligand”. Asian Journal of Chemistry 22, no. 3 (March 30, 2010): 2453–2455. Accessed November 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/11421.