Marcus C. Garcia and  Giselle C. GuimarĂ£es and  Luciana H. Yamane and  Renato R. Siman,  Seasonal Influence on Environmental Indicators of Beach Waste.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2017, vol. 122(2). 124 - 129
    [viewed 18 October 2019]. Available from: https://publications.waset.org/pdf/10006251.