Wirawan, S. K., D. Creaser, I. M. Bendiyasa, and W. B. Sediawan. “CO2 Selective Water Gas Shift Membrane Reactor : Modeling and Simulation”. ASEAN Journal of Chemical Engineering, Vol. 12, no. 1, Dec. 2012, pp. 59-72, https://dev.journal.ugm.ac.id/v3/AJChE/article/view/8124.