Позднякова, Татьяна Михайловна, and Анна Михайловна Позднякова. “The Way to Implement the System-Activity Approach in the Study of the Elective Course «The Territorial Organization of Productive Forces As a Factor in the Development of the Region»”. Proceedings of Voronezh State University. Series: Geography. Geoecology0, no. 3 (July 17, 2019): 95-101. Accessed December 15, 2025. https://journals.vsu.ru/geo/article/view/2333.