Hazleen Anuar and  Nur Aimi Mohd Nasir and  Yousuf El-Shekeil,  Effects of Coupling Agent on the Properties of Durian Skin Fibre Filled Polypropylene Composite.   journal   = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2015, vol. 108(12). 1378 - 1382
    [viewed 23 September 2019]. Available from: https://publications.waset.org/pdf/10003065.