Analysis of the second intermediate grade mathematics book according to the skills of productive thinking. Journal of the College of Basic Education, [S. l.], v. 28, n. 117, p. 895–910, 2022. DOI: 10.35950/cbej.v28i117.9059. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/9059.. Acesso em: 4 jul. 2024.