POPELO, Olha, Svitlana TULCHYNSKA, Yuliia KHARCHENKO, Bogdan DERGALIUK, Semen KHANIN, & Tetiana TKACHENKO. " Systemic Approach to Assessing Sustainable Development of the Regions." Journal of Environmental Management and Tourism [Online], 12.3 (2021): 742-753. Web. 21 Nov. 2024