Avagyan AR. WORLDVIEW OF TOURISM. Proc. YSU C: Geol. Geogr. Sci. [Internet]. 2021 Dec. 23 [cited 2024 May 17];55(3 (256):210-5. Available from: https://journals.ysu.am/index.php/proceedings-geol-geogr/article/view/vol55_no3_2021_pp210-215