Modher Y. Mohammed, Ayad S. Hameed, and Adnan A. Hamada, “Synthesis and Characterization Complexes of Cobalt(II), Nickel(II), Copper(II) and Palladium with [N’-{2-(4-isobutyl-phenyl)-propionyl} pyridine-4-carbohydrazide]”, Tikrit J. Pure Sci., vol. 22, no. 2, pp. 92–98, Jan. 2023.