1. World Bioenergy Association (2018) WBA global bioenergy statistics 2018.
https://worldbioenergy.org/uploads/181203%20WBA%20GBS%202018_hq.pdf
2. Overend RP (2009) Direct combustion of biomass. Renewable energy sources charged with energy from the sun and originated from earth-moon interaction, vol 1, pp 74–100
3. Department of Alternative Energy Development and Efficiency (2015) Ministry of Energy, Alternative Energy Development Plan (AEDP2015) (in Thai)
4. National Science Technology and Innovation Policy Office (2015) and The Joint Graduate School of Energy and Environment, Manual for biomass combustion technology for industry (in Thai)
5. Regional Environmental Office 5 (2011) Ministry of Natural Resources and Environment, Manual for water hyacinth management (in Thai)