WASET
    Pimmada Wichasin and  Nuntiya Doungphummes,  A Comparative Study of International Tourists- Safety Needs and Thai Tourist Polices- Perception towards International Tourists- Safety Needs.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2012, vol. 67(7). 1938 - 1944
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/9477.