WASET
    M. M. Mortula,  Health Risk Assessment of PET Bottles in GCC.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2013, vol. 75(3). 141 - 146
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/10324.