2017. INFLUENCE OF THE HRAZDAN RIVER POLLUTION ON MORPHOFUNCTIONAL FEATURES OF PELOPHYLAX RIDIBUNDUS INTESTINE. Proceedings of the YSU B: Chemical and Biological Sciences. 51, 3 (244) (Nov. 2017), 166–170. DOI:https://doi.org/10.46991/PYSUB.2017.51.3.166.