WASET
    Solomon Neway Jida and  Jean-Francois Hetet and  Pascal Chesse,  Estimation of Exhaust and Non-Exhaust Particulate Matter Emissions’ Share from On-Road Vehicles in Addis Ababa City.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2020, vol. 162(6). 145 - 149
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/10011289.