Pin Chanjula. 2003. Effects of roughages and energy sources in ruminants. Field of Study Animal Science, Khon Kaen University;
Pin Chanjula. (2003) Effects of roughages and energy sources in ruminants . Khon Kaen University/Khon Kaen.
Pin Chanjula. Effects of roughages and energy sources in ruminants. . Khon Kaen:Khon Kaen University, 2003.
Pin Chanjula. (2003) Effects of roughages and energy sources in ruminants . Khon Kaen University/Khon Kaen.