1. U.S. Climate Change Technology Program: Technology Options for the Near and Long Term;Abraham,2003
2. Preparation of activated carbon from oil palm fruit bunch for the adsorption of acid red 1 using optimized response surface methodology;Auta;J. Eng. Res. Appl. (IJERA),2012
3. Biomass Gasification, Pyrolysis and Torrefaction: Practical Design and Theory;Basu,2013
4. Hydrogen production from natural gas, sequestration of recovered CO2 in depleted gas wells and enhanced natural gas recovery;Blok;Energy,1995
5. Boerrigter H. and van der Drift B, (2005). Biosyngas Key-Intermediate in Production of Renewable Transportation Fuels, Chemicals, and Electricity: Optimum Scale and Economic Prospects of Fischer-Tropsch Plants. 14th European Biomass Conference & Exhibition. Paris.