Ab Aziz, M. Arif, Aishah Abdul Jalil, and Sugeng Triwahyono. 2017. “Characterization of Iron-Doped Mesoporous Silica Nanoparticles for CO2 Methanation”. Malaysian Journal of Catalysis 3 (2). https://doi.org/10.11113/mjcat.v3n2.74.