Theinnoi, K., A. Tsolakis, B. Sawatmongkhon, and S. Chuepeng. 2018. “A Study of Hydrogen Addition on Diesel Oxidation Catalyst Activities under the Real Diesel Engine”. Journal of Research and Applications in Mechanical Engineering 1 (3):29-32. https://ph01.tci-thaijo.org/index.php/jrame/article/view/149693.