Kabbashi, Nassereldeen Ahmed, Md Zahangir Alam, and M. Fahrurrazi Tompang. 2010. “Direct Bioconversion of Oil Palm Empty Fruit Bunches for Bioethanol Production By Solid State Bioconversion”. IIUM Engineering Journal 8 (2):25-36. https://doi.org/10.31436/iiumej.v8i2.90.