WASET
    Dhongkyu Yoon,  Current Situation and Possible Solutions of Acid Rain in South Korea.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2012, vol. 66(6). 352 - 356
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/807.