ARSLAN, A. Middle School Students’ Cognitive Perceptions of Cycles of Matter and Environmental Problems: A Word Association Test. International Journal of Contemporary Educational Research, [S. l.], v. 10, n. 4, p. 946–966, 2023. DOI: 10.52380/ijcer.2023.10.4.565. Disponível em: https://ijcer.net/index.php/pub/article/view/565. Acesso em: 17 jul. 2024.