Purvis, Michael R I, Gilbert Lim, Susan A Races, Carlita M Salazar, Raymond Girard R Tan, dan Stanley Santoso. 2004. “Modelling As an Aid to Biomass Combustion in Plant Design” 4 (2), 75-83. https://jurnal.ugm.ac.id/v3/AJChE/article/view/7627.