Numan, A.Th., 		Alsalehe, E. I., AND 		Aldulaimi, J. H..
" Synthesis and Characterization of Tetradentate Complexes Type N2O2 From the Reaction of 2-Hydroxy -1, 2-Diphynel-Ethanone Oxime [H2L] With Mn II, Fe II, Co II, Ni II, Cu II and Hg II  Ions" <em>Ibn AL- Haitham Journal For Pure and Applied Sciences</em> [Online], Volume 22 Number 3 (7 August 2017)