1. BP Statistical Review of World Energy June 2016, 65th ed.
2. Energy trajectory in india: challenges and opportunities for innovation;Ramachandran;REaD,2015
3. Rawat AS, Indian Forestry: A perspective, Indus publishing company, New Delhi; 1993, p. 316.
4. Olivier JGJ, Janssens-Maenhout G, Muntean M, Peters JAHW, Trends in global CO2 emissions: 2015 Report. PBL Netherlands Environmental Assessment Agency, The Hague; European Commission, Joint Research Centre (JRC), Institute for Environment and Sustainability (IES). JRC98184, PBL1803.
5. Co-gasification of coal and wastes in a pilot-scale installation 1: effect of catalysts in syngas treatment to achieve tar abatement;Pinto;Fuel,2009