Affina Andi, Nurul, Wan Mohd Faizal Wan Mahmood, Fadzli Ibrahim, and Mohd Nizam Ab Rahman. “Soot Particulate Emission from A Single Cylinder Direct Injection Diesel Engine”. International Journal of Engineering and Technology 8, no. 1.2 (January 30, 2019): 174–179. Accessed August 17, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/24897.