WASET
    W. V. W. H. Wickramaarachchi and  S. Walpalage and  S. M. Egodage,  Identification of the Best Blend Composition of Natural Rubber-High Density Polyethylene Blends for Roofing Applications .   journal   = {International Journal of Chemical and Materials Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2019, vol. 148(4). 195 - 199
    [viewed 18 April 2024]. Available from: https://publications.waset.org/pdf/10010303.