WASET
    Ramin Mirzada and  Takuya Maruyama,  Bus Transit Demand Modeling and Fare Structure Analysis of Kabul City.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2016, vol. 115(7). 2517 - 2530
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10005479.