Jirawan Apiraksakorn, Tonglian Buwjoom, and Sunee Nitisinprasert. 2006. “Characterization of Grass Degrading Bacteria Active on β-1,3-1,4-D-glucans from Bacillus subtilis GN156 Potential Use for Grass Silage-Making”. Agriculture and Natural Resources 40 (1). Bangkok, Thailand:136-47. https://li01.tci-thaijo.org/index.php/anres/article/view/243541.