Khairuddin Md Isa, L.J. Ying, Saiful Azhar Saad, Farizul Hafiz Kasim, and Mohd Asri Ab Rahim. 2016. “Pyrolysis of Oil Palm Fronds in a Fixed Bed Reactor and Optimisation of Bio-Oil Using Box-Behnken Design”. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 27 (1):12-18. https://semarakilmu.com.my/journals/index.php/fluid_mechanics_thermal_sciences/article/view/2603.