Boonsai, Palakorn, Boonya Charnnok, and Sucheewan Yoyrurob. “Effect of Reaction Time in Liquid Hot Water Pretreatment on Methane Potential of Oil Palm Fiber”. PKRU SciTech Journal 6, no. 1 (June 8, 2022): 1–12. Accessed May 6, 2024. https://ph01.tci-thaijo.org/index.php/pkruscitech/article/view/246890.