Hussein, A.S. 2018. Synthesis and Spectral studies of some (IIb) ions with 2 – [ ( 6 – Nitro – 2 – Benzothiazolyl ) azo – 4 , 5 – diphenyl imidazole and Their Biological Activity. Al-Qadisiyah Journal of Pure Science. 22, 2 (Jan. 2018), 1-9.