Mandakini Thakur and  Sheena Pall,  Technologies of Transportation and Communication: Impact in Colonial Punjab.   journal   = {International Journal of Humanities and Social Sciences}, [online]. World Academy of Science, Engineering and Technology.
    March 2023, vol. 195(3). 136 - 142
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10012990.