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