HAMMADI, S. S.; HASSAN, A. . K. the effect of an imaginary strategy in an achievement of mathematics subject and visual thinking for sixth grade biological science secondary students. Journal of Tikrit University for Humanities, [S. l.], v. 25, n. 1, p. 208–239, 2018. DOI: 10.25130/jtuh.25.1.2018.08. Disponível em: https://jtuh.org/index.php/jtuh/article/view/458. Acesso em: 8 may. 2026.