Alkurdy, F., and S. Ebrahim. “Comparison Between Commercial and Synthesized Fe3O4 Nanoparticles for Removal of Heavy Metal Contaminants in Wastewater”. Association of Arab Universities Journal of Engineering Sciences, Vol. 27, no. 1, Mar. 2020, pp. 30-43, doi:10.33261/jaaru.2019.27.1.004.