Ismira, I., R. Hidayat, R. Ratnawulan, and R. Jonuarti. “Structure Analysis Of Fe3O4-Graphene Oxide Nanocomposite From Corn Cob Waste”. Journal of Experimental and Applied Physics, vol. 2, no. 2, June 2024, doi:10.24036/jeap.v2i2.59.