Saeed Rezaeian and  M. Rezaee Boroon,  A Close Study on the Nitrate Fertilizer Use and Environmental Pollution for Human Health in Iran.   journal   = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2018, vol. 135(3). 69 - 72
    [viewed 27 January 2021]. Available from: https://publications.waset.org/pdf/10008623.