Durgaryan, E. R. “MORPHOMETRIC INDICATORS OF SYUNIK REGION”. Proceedings of the YSU C: Geological and Geographical Sciences 41, no. 3 (214) (October 12, 2007): 140–145. Accessed July 22, 2024. https://journals.ysu.am/index.php/proceedings-geol-geogr/article/view/vol41_no3_2007_pp140-145.