Manasyan, M.G., and G.P. Harutyunyan. 2013. “SETTLEMENT SYSTEM AND SPATIAL DIFFERENTIATION OF LIFE QUALITY IN RA”. Proceedings of the YSU C: Geological and Geographical Sciences 47 (3 (232). Yerevan, Armenia:38-42. https://doi.org/10.46991/PYSU:C/2013.47.3.038.