Analyzing the content of the two science books (the two chemistry units) for the intermediate stage according to environmental problems. Journal Of Educational and Psychological Researches, [S. l.], v. 18, n. 71, p. 652–625, 2022. Disponível em: https://jperc.uobaghdad.edu.iq/index.php/jperc/article/view/1222. Acesso em: 14 may. 2025.