Widiawati, S., and A. Astuti. “Effect of Isopropanol on Optical Properties of Fe3O4/ZnO/Graphene Quantum Dots (GQDs) Nanocomposite”. JURNAL ILMU FISIKA | UNIVERSITAS ANDALAS, vol. 16, no. 2, Aug. 2024, pp. 142-50, doi:10.25077/jif.16.2.142-150.2024.