ฝั้นแก้ว ป., พงศ์พุฒิ ค., พึ่งสุข บ. and ณ ลำปาง พ. 2017. A Comparative Study on Engine Performance of Modified Diesel Engine with Dual Biogas and Pure Biogas Fuel. RMUTL Engineering Journal. 2, 1 (Mar. 2017), 25–32. DOI:https://doi.org/10.14456/rmutlengj.2017.3.