R. Kandiah and  K. Miyamoto,  Water Budget in High Drought-Borne Area in Jaffna District, Sri Lanka during Dry Season.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2016, vol. 113(5). 608 - 613
    [viewed 20 October 2019]. Available from: https://publications.waset.org/pdf/10004628.