Pitchanan Nimpiboon และ Piamsook Pongsawasdi. (2008) Production of prebiotic oligosaccharides by glucansucrase from bacillus licheniformis th4-2. Chulalongkorn University:ม.ป.ท.Pitchanan Nimpiboon และ Piamsook Pongsawasdi. 2008. Production of prebiotic oligosaccharides by glucansucrase from bacillus licheniformis th4-2. ม.ป.ท.:Chulalongkorn University;Pitchanan Nimpiboon และ Piamsook Pongsawasdi. Production of prebiotic oligosaccharides by glucansucrase from bacillus licheniformis th4-2. ม.ป.ท.:Chulalongkorn University, 2008. Print.