Pawul, Małgorzata, and Wiktoria Sobczyk. “Ecological Education in Waste Management As a Tool for The Implementation of Sustainable Development”. Problemy Ekorozwoju 6, no. 2 (July 1, 2011): 147–156. Accessed December 22, 2024. https://ph.pollub.pl/index.php/preko/article/view/4792.