WASET
    Hilal A. Abdelwali and  Elsayed E.M. Ellaimony and  Ahmad E.M. Murad and  Jasem M.S. Al-Rajhi,  Optimum Replacement Policies for Kuwait Passenger Transport Company Busses: Case Study.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2011, vol. 51(3). 699 - 706
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10913.