W. K. Yap and  V. Karri,  Modeling and Simulation of a Hybrid Scooter.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2008, vol. 23(11). 1229 - 1234
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/8726.