“Synthesis, Spectral Identification, Thermal and Antioxidant Studies for Ni (II), Pd (II), Pt (IV) and Au (III) Complexes With New Azo Ligand Derivatives from Tryptamine” (2023) Ibn AL-Haitham Journal For Pure and Applied Sciences, 36(4), pp. 303–320. doi:10.30526/36.4.3059.