R., H.; K., T. A.; C., A.; A., S.; G., A. Secondary School Students’ Conceptual Understanding of Physical and Chemical Changes. Asian Journal of Education and Training, [S. l.], v. 2, n. 2, p. 44–52, 2016. DOI: 10.20448/journal.522/2016.2.2/522.2.44.52. Disponível em: http://asianonlinejournals.com/index.php/EDU/article/view/279. Acesso em: 22 dec. 2024.