U-thai, Panida, Pilanee Vaithanomsat, Antika Boondaeng, Anfal Talek, and Sawitri Chuntranuluck. “Production of Fumaric Acid from Oil Palm Empty Fruit Bunch”. Asia-Pacific Journal of Science and Technology 21, no. 2 (July 15, 2016): 221–228. Accessed May 3, 2024. https://so01.tci-thaijo.org/index.php/APST/article/view/62621.