Perkowski, Maciej. “Regions in Relation to the United Nations and the Sustainable Development Goals of the 2030 Agenda: A National Perspective”. LAW & SOCIAL BONDS, no. 3 (46) (November 17, 2023): 9–24. Accessed October 15, 2026. https://www.prawoiwiez.edu.pl/index.php/piw/article/view/721.