Mawaddah, I. and Utomo, M.P. 2022. Preparation of Cobalt-Silica Dioxide (CoxSiO2) Catalyst through Impregnation Method. Indonesian Journal of Chemistry and Environment. 5, 1 (Jul. 2022), 25–30. DOI:https://doi.org/10.21831/ijoce.v5i1.51823.