Differentiation of the Territory of Tatarstan Republic into Zones Due to their Significance for Domestic and National and International Tourism. Mediterr. J. Soc. Sci. [Internet]. 2014 Nov. 11 [cited 2024 Apr. 29];5(24):398. Available from: https://www.richtmann.org/journal/index.php/mjss/article/view/5008