“Synthesis and Characterization Complexes of Cobalt(II), Nickel(II), Copper(II) and Palladium with [N’-{2-(4-isobutyl-phenyl)-propionyl} pyridine-4-carbohydrazide]” (2023) Tikrit Journal of Pure Science, 22(2), pp. 92–98. doi:10.25130/tjps.v22i2.632.