Mittal, Pratibha, and V. Uma. “Stability Constants and Antimicrobial Studies of Metal(II) Complexes With Cinnamaldehyde-(2-Hydroxy benzylidene)hydrazide”. Asian Journal of Chemistry, vol. 21, no. 2, Mar. 2010, pp. 1230-8, https://asianpubs.org/index.php/ajchem/article/view/18813.