WASET
    Pek Chuen-Khee and  Jamal Othman,  Household Demand for Solid Waste Disposal Options in Malaysia.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2010, vol. 43(7). 294 - 299
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/5977.