Mkrtchyan, R. S., and H. V. Haroutunyan. “THE AGROCLIMATIC BASIS OF AGRICULTURAL ZONING ON THE TERRITORY OF ARMENIA”. Proceedings of the YSU C: Geological and Geographical Sciences, vol. 41, no. 2 (213), June 2007, pp. 128-36, doi:10.46991/PYSU:C/2007.41.2.128.