Enhanced production of xylanase by recombinant Escherichia coli DH5x through optimization of medium composition using response surface methodology. - Ariff, Arbakariya; Mohamad, Rosfarizan; M. Rusli, Farliahati; Ramanan, Ramakrishnan Nagasundara; Tri Puspaningsih, Ni Nyoman (Springer Verlag, 2010)