Jailan Mohamed El Demerdash,  Millennials' Viewpoints about Sustainable Hotels' Practices in Egypt: Promoting Responsible Consumerism.   journal   = {International Journal of Humanities and Social Sciences}, [online]. World Academy of Science, Engineering and Technology.
    April 2019, vol. 149(5). 622 - 629
    [viewed 12 November 2019]. Available from: https://publications.waset.org/pdf/10010361.