R. S. Sabry, M. A. Abid, and S. Q. Hussein, “Effects of Change PH on The Structural and Optical Properties of Iron Oxide Nanoparticles”, Al-Mustansiriyah Journal of Science, vol. 32, no. 3, pp. 58–62, Jun. 2021, doi: 10.23851/mjs.v32i3.967.