Shmatkov, D., A. Shelkovyj, and N. Bielikova. “Vertical Reduction of the Learning Content of the Topic ‘Waste observation’ of the Discipline “Environmental Monitoring”. Problems of Engineer-Pedagogical Education, no. 61 (April 25, 2019): 83–94. Accessed November 21, 2024. https://jped.uipa.edu.ua/index.php/JPED/article/view/253.