WASET
    T. H. Derdzyan and  K. A. Ghazaryan and  G. A. Gevorgyan,  The Investigation of Enzymatic Activity in the Soils under the Impact of Metallurgical Industrial Activity in Lori Marz, Armenia.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2015, vol. 101(5). 439 - 442
    [viewed 16 April 2024]. Available from: https://publications.waset.org/pdf/10001074.