Tan W-Ch., Yap S-Y., Matsumoto A., Othman R.,Yeoh F-Y., (2011), Synthesis and characterization of zeolites NaA and NaY from rice husk ash. Adsorption. 17: 863–868.
 Beck J. S., Vartuli J. C., Roth W. J., Leonowicz M. E., Kresge C. T., Schmitt K. D., Chu C. T. W., Olson D. H., Sheppard E.W., (2012), A new family of mesoporous molecular sieves prepared with liquid crystal templates. J. Am. Chem. Soc. 114: 10834–10843.
 Pourahmad A.,(2013), Nanocomposite prepared from ZnS nanoparticles and molecular sieves nanoparticles by ion exchange method: Characterization and its photocatalytic activity. Spectrochim Acta: A. 103: 193-198.
 Pourahmad A., (2012), Ag2S nanoparticle encapsulated in mesoporous material nanoparticles and its application for photocatalytic degradation of dye in aqueous solution. Superlattice Microst. 52: 276-287.
 Srivastava V. C., Mall I. D., Mishra I. M., (2006), Characterization of mesoporous rice huskash (RHA) and adsorption kinetics of metal ions from aqueous solution onto RHA. J. Hazard. Mater: sB. 134: 257–267.
 Ahmed A. E., Adam F., (2007), Indium incorporated silica from rice husk and its catalytic activity. Micropor. Mesopor. Mater. 103: 284–295.
 Endud S., Wong K. L., (2007), Mesoporous silica MCM-48 molecular sieve modified SnCl2 in alkaline medium for selective oxidation of alcohol. Micropor. Mesopor. Mater. 101: 256–263.
 Thuadaij N., Nuntiya A., (2008), Preparation of nanosilica powder from rice husk ash by precipitation method. Chiang Mai. J. Sci. 35: 206–211.
 Pourahmad A., (2015), Fabrication of nanocatalyst in aqueous solution with photocatalytic activity of methylene blue. Synth. React. Inorg. Met.-Org. Chem. 45: 1080-1086.