Nino Rinaldi. “EVALUATION OF Co-Mo Al2O3 CATALYSTS FOR HYDRODESULFURIZATION PREPARED BY THE CHEMICAL VAPOR DEPOSITION TECHNIQUE AND CITRIC ACID ADDITION”. Jurnal Sains Materi Indonesia, vol. 13, no. 1, Oct. 2011, pp. 1-10, doi:10.17146/jusami.2011.13.1.5393.