K. Mythili,  Tourism-Impact on Environment-Observations from North Coastal Districts of A.P, India.   journal   = {International Journal of Humanities and Social Sciences}, [online]. World Academy of Science, Engineering and Technology.
    July 2013, vol. 79(7). 1943 - 1946
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/16311.