Indra Gunawan, Hildayati, Sudirman, Emil Budianto. SYNTHESIS AND CHARACTERIZATION OF NATURAL RUBBER-SILICA COMPOSITE. j. sains materi indonesia [Internet]. 2011 Feb. 28 [cited 2026 Nov. 15];12(2):86-90. Available from: https://ejournal.brin.go.id/jsmi/article/view/6652