Ghazaryan, K.A., and H.S. Movsesyan. “SOIL MICROBIAL BIOMASS AND ENZYME ACTIVITIES RESPONSE TO COPPER AND MOLYBDENUM POLLUTION IN THE VICINITY OF ZANGEZUR COPPER AND MOLYBDENUM COMBINE, ARMENIA”. Proceedings of the YSU B: Chemical and Biological Sciences, vol. 54, no. 3 (253), Dec. 2020, pp. 235-4, doi:10.46991/PYSU:B/2020.54.3.235.