Peryoga, Yoga, Maharani Dewi Solikhah, and Alfonsus Agus Raksodewanto. 2014. “Production Cost Assessment of Palm Empty Fruit Bunch Conversion to Bio-Oil via Fast Pyrolysis”. International Journal on Advanced Science, Engineering and Information Technology 4 (6):394-400. https://doi.org/10.18517/ijaseit.4.6.443.