Nisah, Khairun, et al. “Fabrication and Characterization of SiO2-Embedded Castor Oil-Based Membrane (Ricinus Communis L) for Aqueous Fe Adsorption”. Narra X, vol. 2, no. 2, Sept. 2024, p. e158, doi:10.52225/narrax.v2i2.158.