Pranolo, S. H., Y. Bindar, D. Sasongko, and H. Susanto. “Modeling and Simulation of a Separate Line Calciner Fueled With a Mixture of Coal and Rice Husk”. ASEAN Journal of Chemical Engineering, Vol. 10, no. 1, Dec. 2010, pp. 27-33, https://dev.journal.ugm.ac.id/v3/AJChE/article/view/8064.