Gazaryan, K.A., et al. “HYDROCHEMICAL ANALYSIS AND EVALUATION OF GROUNDWATER QUALITY FOR IRRIGATION IN MASIS REGION, ARMENIA”. Proceedings of the YSU B: Chemical and Biological Sciences, vol. 53, no. 3 (250), Dec. 2019, pp. 193-9, doi:10.46991/PYSU:B/2019.53.3.193.