Pratuang Funkeaw และผู้แต่งคนอื่นๆ. (2017) A Comparative Study on Engine Performance of Modified Diesel Engine with Dual Biogas and Pure Biogas Fuel. <i>RMUTL Engineering Journal</i>, <i>2</i>(1), 25-32.Pratuang Funkeaw และผู้แต่งคนอื่นๆ. "A Comparative Study on Engine Performance of Modified Diesel Engine with Dual Biogas and Pure Biogas Fuel". RMUTL Engineering Journal 2 (2017):25-32.Pratuang Funkeaw และผู้แต่งคนอื่นๆ. A Comparative Study on Engine Performance of Modified Diesel Engine with Dual Biogas and Pure Biogas Fuel. Rajamangala University of Technology Lanna:ม.ป.ท. 2017.