Kitda Praraththajariya,  The Innovation of English Materials to Communicate the Identity of Bangpoo, Samut Prakan Province, for Ecotourism.   journal   = {International Journal of Humanities and Social Sciences}, [online]. World Academy of Science, Engineering and Technology.
    August 2014, vol. 92(8). 2645 - 2648
    [viewed 11 May 2024]. Available from: https://publications.waset.org/pdf/9999133.