Affina Andi, Nurul, Wan Mohd Faizal Wan Mahmood, Fadzli Ibrahim, and Mohd Nizam Ab Rahman. 2019. “Soot Particulate Emission from A Single Cylinder Direct Injection Diesel Engine”. International Journal of Engineering and Technology 8 (1.2): 174-79. https://doi.org/10.14419/ijet.v8i1.2.24897.