Awaludin Martin, Utama PS, Ginting YR, N. Khotimah. Improvement of Biocoal Quality from Empty Oil Palm Fruit Bunches by Using Peat Water to Reducing Potassium Content and Torrefaction at 300°C to Increasing Heating Value. J. Adv. Res. Fluid Mech. Therm. Sc. [Internet]. 2021 Dec. 29 [cited 2024 May 3];90(2):32-41. Available from: https://semarakilmu.com.my/journals/index.php/fluid_mechanics_thermal_sciences/article/view/245