Mkrtchyan, T.G. “ASSESSMENT OF GEOECOLOGICAL CONDITIONS OF YEREVAN AND ADJACENT TERRITORIES AND THEIR ZONING”. Proceedings of the YSU C: Geological and Geographical Sciences, vol. 49, no. 2 (237), Aug. 2015, pp. 34-38, doi:10.46991/PYSU:C/2015.49.2.034.