S.I, Mustapa, and Bekhet H.A. “Factors Influencing CO2 Emissions and Strategies for Emissions Reduction in Malaysian Transportation Sector”. International Journal of Engineering & Technology 7, no. 4.35 (November 30, 2018): 823–829. Accessed July 21, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/23115.