Duanpen Chaithongdee, Jarun Chutmanop, and Penjit Srinophakun. “Effect of Antioxidants and Additives on the Oxidation Stability of Jatropha Biodiesel”. Agriculture and Natural Resources, vol. 44, no. 2, Apr. 2010, pp. 243-50, https://li01.tci-thaijo.org/index.php/anres/article/view/244911.