RAHAYU, P., S. SETYAHADI, and . HARMITA. “Production and Purification of Xylanase From Indonesian Isolate Bacillus Sp. AQ-1 Grown on Bunch Palm Oil”. Microbiology Indonesia, vol. 3, no. 1, Aug. 2010, p. 4, doi:10.5454/mi.3.1.4.