“ASESSMENT OF ECOLOGICAL AND AGRICULTURAL RISKS OF HEAVY METAL POLLUTION OF SOILS IN THE VICINITY OF KAPAN CITY, ARMENIA”. Proceedings of the YSU B: Chemical and Biological Sciences, vol. 51, no. 3 (244), Nov. 2017, pp. 193-7, https://doi.org/10.46991/PYSU:B/2017.51.3.193.