Gevorgyan G. AN INVESTIGATION OF HYDROCHEMICAL CONTAMINATION IN THE HRAZDAN RIVER, ARMENIA. Proc. YSU B: Chem. Biol. Sci. [Internet]. 2020 Dec. 15 [cited 2024 Nov. 21];54(3 (253):255-60. Available from: https://journals.ysu.am/index.php/proceedings-chem-biol/article/view/vol54_no3_2020_pp255-260