JAWARNEH, M. Readability Level of the National and Social Education Textbook among the Fourth Grade Students in Jordan. Jordan Journal of Educational Sciences, [S. l.], v. 4, n. 2, p. 125–136, 2008. Disponível em: https://jjes.yu.edu.jo/index.php/jjes/article/view/897. Acesso em: 10 may. 2025.