1. UNDP/World Bank guidelines for field monitoring of small-scale biomass gasifiers;The World Bank,1984
2. Field monitoring of biomass gasifiers;Mendis,1988
3. Baseline monitoring report: 45 kVA peatfuelled gasifier installation in Burundi,1986
4. Baseline monitoring report: 40 kVA wood-fuelled gasifier installation in the Seychelles,1986
5. Baseline monitoring report: 160 kW rice-husk-fuelled gasifier installation in Mali,1986