Kaadhm , E. Q., K. D. . Salman, and A. H. . . Reja. “Investigating The Effect of Magnetite (Fe3O4) Nanoparticles on Mechanical Properties of Epoxy Resin”. Engineering and Technology Journal, vol. 39, no. 6, June 2021, pp. 986-95, doi:10.30684/etj.v39i6.2063.