Olena Mitrasova, and Andrii Mats. “HOW A NATURAL EDUCATION SHOULD ADDRESS ISSUES OF SUSTAINABLE DEVELOPMENT AND ENVIRONMENTAL PROBLEMS”. Journal of Civil Engineering, Environment and Architecture 38, no. 68 (October 3, 2021): 5-15. Accessed April 24, 2024. https://journals.prz.edu.pl/jceea/article/view/rb.2021.1.