K. Arunachalam and  P. Mannar Jawahar,  Design of Walking Beam Pendle Axle Suspension System.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2014, vol. 93(9). 1630 - 1633
    [viewed 09 May 2024]. Available from: https://publications.waset.org/pdf/9999618.