T.Numan, A.·. " Synthesis and Charact'erizatio.n of new Schiff base ligand [(2-{1-[(2 hydraxy­ benzylidene)-hydrazono]-ethyl} benzene-I, 3, 5--triol.] and it's CQmp.lexes. with Co en\ Ni . (U),, c·u(U)' and · zn(II)." Ibn AL- Haitham Journal For Pure and Applied Science [Online], Volume 21 Number 3 (23 September 2017)