Murniati, Riri, et al. “Nanosilica Particulate Magnetic As Alternative Filler on Natural Rubber Composites With Human-Tissue-Like Mechanical Characteristic ”. JURNAL ILMU FISIKA | UNIVERSITAS ANDALAS, vol. 14, no. 2, Aug. 2022, pp. 124-31, doi:10.25077/jif.14.2.124-131.2022.