Rith, Monorom, Nechoh A. Arbon, and Jose Bienvenido M. Biona. 2019. “Optimization of Diesel Injection Timing, Producer Gas Flow Rate, and Engine Load for a Diesel Engine Operated on Dual Fuel Mode at a High Engine Speed”. Engineering and Applied Science Research 46 (3):192-99. https://ph01.tci-thaijo.org/index.php/easr/article/view/171330.