“Modification of NiW Al₂O₃ Bimetallic Catalysts by ZSM-5, HY Zeolite, and Amorphous Silica Additions for Heavy Gas Oil (HGO) Hydrotreating”. Jurnal Kimia Valensi, vol. 12, no. 1, May 2026, pp. 26-34, https://doi.org/10.15408/jkv.v12i1.49693.