Surachai Rattanasuk และ Roi Et Rajabhat University. (2016) Isolation of thermophilic mannanase-producing bacteria. Mahasarakham University:ม.ป.ท.Surachai Rattanasuk และ Roi Et Rajabhat University. 2016. Isolation of thermophilic mannanase-producing bacteria. ม.ป.ท.:Mahasarakham University;Surachai Rattanasuk และ Roi Et Rajabhat University. Isolation of thermophilic mannanase-producing bacteria. ม.ป.ท.:Mahasarakham University, 2016. Print.