Kaewtrakulchai, N., M. Fuji, and A. Eiad-ua. “Investigation of Parametric Effects on Fuel Characteristics of Biochar Obtained from Agricultural Wastes Pyrolysis”. Journal of Materials Science and Applied Energy, vol. 7, no. 3, Dec. 2018, pp. 333-9, https://ph01.tci-thaijo.org/index.php/jmsae_ceae/article/view/125970.