“Synthesis of New Heterocyclic Derivatives from 4-(3, 5-Dimethyl-1-phenyl-1H-pyrazol-4-ylazo)- benzoic acid ”, Baghdad Sci.J, vol. 7, no. 1, pp. 727–736, Mar. 2010, doi: 10.21123/bsj.2010.7.1.727-736.