Khampheng Phothichitto. (2006) Isolation and characterization of mannanase producing microorganism /. Kasetsart University,:ม.ป.ท.Khampheng Phothichitto. 2006. Isolation and characterization of mannanase producing microorganism /. ม.ป.ท.:Kasetsart University,;Khampheng Phothichitto. Isolation and characterization of mannanase producing microorganism /. ม.ป.ท.:Kasetsart University, 2006. Print.