Gevorgyan, G., Danielyan, A., Grigoryan, K., & Minasyan, S. (2011). POLLUTION LEVEL OF THE MEGHRIGET, VOGHCHI AND ARTSVANIK RIVERS WITH HEAVY METALS AND ALUMINIUM. Proceedings of the YSU B: Chemical and Biological Sciences, 45(3 (226), 50–53. https://doi.org/10.46991/PYSU:B/2011.45.3.050