Grigoryan, A.V., A.F. Karapetyan, and K.A. Jivanyan. “HISTOMORPHOLOGICAL FEATURES OF LAKE FROG`S SKIN ($Rana~ridibunda$), LIVING AT THE HRAZDAN RIVER”. Proceedings of the YSU B: Chemical and Biological Sciences 45, no. 1 (224) (February 2, 2011): 49–52. Accessed July 22, 2024. https://journals.ysu.am/index.php/proceedings-chem-biol/article/view/vol45_no1_2011_pp049-052.