Lakkana Laopaiboon. (2008) Ethanol production from sweet sorghum stem juice using very high gravity (VHG) technology. Khon Kaen University:ม.ป.ท.Lakkana Laopaiboon. 2008. Ethanol production from sweet sorghum stem juice using very high gravity (VHG) technology. ม.ป.ท.:Khon Kaen University;Lakkana Laopaiboon. Ethanol production from sweet sorghum stem juice using very high gravity (VHG) technology. ม.ป.ท.:Khon Kaen University, 2008. Print.