W. Intagun and T. Khamdaeng and P. Prom-ngarm and N. Panyoyai, Effect of Core Puncture Diameter on Bio-Char Kiln Efficiency. journal = {International Journal of Biotechnology and Bioengineering}, [online]. World Academy of Science, Engineering and Technology. October 2018, vol. 143(11). 435 - 439 [viewed 19 September 2024]. Available from: https://publications.waset.org/pdf/10009773.