Achoyan, Z.A. et al. 2010. MAJOR PROBLEMS OF UNDERGROUND WATERS USE IN NOYEMBERYAN REGION. Proceedings of the YSU C: Geological and Geographical Sciences. 44, 1 (221) (Mar. 2010), 26–30. DOI:https://doi.org/10.46991/PYSU:C/2010.44.1.026.