Karpan, Iryna, Nataliia Chernikova, Tetiana Motuz, Boris Bratanich, and Tetiana Lysokolenko. “Conceptual Principles of Education for Sustainable Development”. European Journal of Sustainable Development 9, no. 2 (June 1, 2020): 99. Accessed June 21, 2024. https://www.ecsdev.org/ojs/index.php/ejsd/article/view/1013.