AL – JUBOURI, Maad; AL – AZI, Majed. The Impact of Strategy 4h in the Achievement of Fifth Grade Students in the History and Development of Their Systemic Thinking. Journal of Tikrit university for humanities - مجلة جامعة تكريت للعلوم الانسانية, [S.l.], v. 26, n. 6, p. 501-479, oct. 2019. ISSN 1817-6798. Available at: <https://jtuh.tu.edu.iq/index.php/hum/article/view/734>. Date accessed: 11 may 2024. doi: http://dx.doi.org/10.25130/hum.v26i6.734.