Lingbo Shen และ Kenji Murakami. (2014) Steam gasification of iron-loaded biochar and subbituminous coal mixture. Joint Graduate School of Energy and Environment:ม.ป.ท.Lingbo Shen และ Kenji Murakami. 2014. Steam gasification of iron-loaded biochar and subbituminous coal mixture. ม.ป.ท.:Joint Graduate School of Energy and Environment;Lingbo Shen และ Kenji Murakami. Steam gasification of iron-loaded biochar and subbituminous coal mixture. ม.ป.ท.:Joint Graduate School of Energy and Environment, 2014. Print.