Duk, Nataliya, and Irina Sumatokhina. “Regional Environmental Programs of Dnipropetrovsk Region: Analysis, Mapping, Degree of Implementation”. Problems of Continuous Geographic Education and Cartography0, no. 27 (November 5, 2018): 35-41. Accessed December 18, 2025. https://periodicals.karazin.ua/pbgok/article/view/11623.