Biology Textbook for Scientific Sixth Class in Iraq (A Comparative Study). Journal Of Educational and Psychological Researches, [S. l.], v. 18, n. 69, p. 592–618, 2022. Disponível em: https://jperc.uobaghdad.edu.iq/index.php/jperc/article/view/1174. Acesso em: 6 dec. 2025.