Martirosyan, L., Sargsyan, R., Grigoryan, A., & Harutyunyan, Q. (2018). ESTIMATION OF GEOMORPHOLOGICAL RESOURCES OF NORTHERN ARMENIA FOR DEVELOPMENT OF RECREATION AND TOURISM. Proceedings of the YSU C: Geological and Geographical Sciences, 52(2 (246), 133–140. https://doi.org/10.46991/PYSU:C/2018.52.2.133