WASET
Derdzyan, T. , Ghazaryan, K. , Gevorgyan, G. (2015), 'The Investigation of Enzymatic Activity in the Soils under the Impact of Metallurgical Industrial Activity in Lori Marz, Armenia', World Academy of Science, Engineering and Technology, Open Science Index 101, International Journal of Environmental and Ecological Engineering, 9(5), 439 - 442.