Mojtaba Heydarizad,  Hydrochemical Assessment and Quality Classification of Water in Torogh and Kardeh Dam Reservoirs, North-East Iran.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2018, vol. 133(1). 49 - 53
    [viewed 16 October 2019]. Available from: https://publications.waset.org/pdf/10008563.