Wahjudi, M., C. ., N. M. Wangunhardjo, E. Suryadjaja, and X. Daniel. “Cloning and Over-Expression of XynB Gene of Bacillus Subtilis Subsp. Spizizenii W23 into Escherichia Coli Origami Host Cells”. KnE Life Sciences, Vol. 3, no. 5, Sept. 2017, pp. 139-4, doi:10.18502/kls.v3i5.986.