1. Dhussa A (2004) Biogas in India. MNRE, India
2. Bamboriya ML (2013) Biogas generation, purification and bottling: development in India. India
3. Chanakya HN, Malayil S (2012) Anaerobic digestion for bioenergy from agro-residues and other solid wastes—an overview of science, technology and sustainability. J Indian Inst Sci 92(1):111–144
4. Pedersen TH, Schultz RH (2012) Technical and economic assessment of methanol production from biogas. Department of Energy Technology, University of Aalborg, Denmark
5. Yergin D, Bocca R (2012) Energy for economic growth. Report, Geneva, Switzerland