Rith, Monorom, Bernard Buenconsejo, Jeremias A. Gonzaga, H. W. Gitano-Briggs, Neil S. Lopez, and Jose Bienvenido M. Biona. 2019. “The Combustion and Emission Characteristics of the Diesel Engine Operated on a Dual Producer Gas-Diesel Fuel Mode”. Engineering and Applied Science Research 46 (4):360-70. https://ph01.tci-thaijo.org/index.php/easr/article/view/194362.