Links:
[1] http://admin.indiaenvironmentportal.org.in/reports-documents/improved-charcoal-technologies-and-briquette-production-woody-residues-malawi
[2] http://www.indiaenvironmentportal.org.in/files/file/Improved charcoal.pdf
[3] http://admin.indiaenvironmentportal.org.in/category/publisher/fao
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biomass
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/charcoal
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/malawi
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/africa