MONTALVÁN-LABRADA, Frank. Experimental activities for the development of the teaching of Chemistry in the 9th grade. Educación y sociedad, [S. l.], v. 21, n. 1, p. 230–242, 2023. Disponível em: https://revistas.unica.cu/index.php/edusoc/article/view/2082. Acesso em: 3 jul. 2024.