Potosyan A, Kiasari HE. BASIC INFRASTRUCTURES AND THEIR DEVELOPMENT ISSUES OF TOURISM SECTOR IN TEHRAN PROVINCE. Proc. YSU C: Geol. Geogr. Sci. [Internet]. 2017 Aug. 14 [cited 2024 Nov. 21];51(2 (243):119-26. Available from: https://pub.ysu.am/index.php/proceedings-geol-geogr/article/view/vol51_no2_2017_pp119-126