Sutheerasak, E., W. Pirompugd, W. Ruengphrathuengsuka, and S. Sanitjai. “Comparative investigation of using DEB oil and supercharging syngas and DEB oil as a dual fuel in a DI diesel engine”. Engineering and Applied Science Research, vol. 46, no. 1, Mar. 2019, pp. 26-36, https://ph01.tci-thaijo.org/index.php/easr/article/view/132345.