Novitasari, D., and Widayanti. “Surface Plasmon Resonance (Spr) Sensor Simulation With Kretschmann Configuration Based on Chitosan-Graphene Oxide Nanocomposite for Lead Metal Ion Detection”. Sunan Kalijaga Journal of Physics, vol. 4, no. 1, Aug. 2023, pp. 8-15, doi:10.14421/physics.v4i1.3585.