Samniang, Amonrat, and Somjai Kajorncheappan-ngarm. “Biodiesel production from Jatropha oil by supercritical methanol”. Engineering and Applied Science Research 40, no. 3 (September 20, 2014): 427–435. accessed August 31, 2026. https://ph01.tci-thaijo.org/index.php/easr/article/view/21731.