Abdullah, S., Azeman, N.H., Kamaruddin, N.H., Mobarak, N.N. and A Bakar, A.A. 2021. Localized SPR for Pb(II) ion sensing utilizing chitosan/reduced graphene oxide nanocomposite. Jurnal OptoElektronik. (Jul. 2021). DOI:https://doi.org/10.53655/joe.z3238q.