Buttrus, N., T. Mohanad, and I. Saeed. “Synthesis and Characterization of Some Complex Salts of Ti(III) and VO(V) Chlorides With Pyrrolium , Imidazolium , Indolium and Their Benzyl Derivative”. Journal of Education and Science (JES), vol. 19, no. 3, Apr. 2007, pp. 13-20, doi:10.33899/edusj.2007.51318.