WASET
    Kaishuan Shen and  Pan Changyu and  Yuhsiang Lu and  Zongshao Liu and  Chishxsin Chuang and  Minyuan Ma,  A Study on the Attractiveness of Heavy Duty Motorcycle.   journal   = {International Journal of Humanities and Social Sciences}, [online]. World Academy of Science, Engineering and Technology.
    June 2009, vol. 30(6). 1050 - 1054
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/2426.