ประสาทแก้ว บุณย์ฤทธิ์. “Engine Modification to Run on Ethanol Fuel”. Frontiers in Engineering Innovation Research 7 (June 30, 2006): 21–29. accessed September 3, 2026. https://ph01.tci-thaijo.org/index.php/jermutt/article/view/242275.