Intanoo, Patcharee, and Nunticha Thammo. 2019. “Ethanol Production from Sago Palm Residue Pretreated With Two-Stage Chemical Process by Using Seed Sludge”. Journal of Food Health and Bioenvironmental Science 12 (1). Bangkok, Thailand:1-8. https://li01.tci-thaijo.org/index.php/sdust/article/view/186532.