WASET
    Essam Abdel-Salam Gouda,  Problems that Impede Sustainable Tourism Development in Egypt.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2012, vol. 71(11). 2800 - 2807
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/15561.