QUSAY, Mohammed Latif; MOHAMMED ABDULLAH, Yasser. The effect of using the strategy of numbered heads in the achievement of students in the second grade intermediate in history and the development of their scientific thinking. Journal of Tikrit university for humanities - مجلة جامعة تكريت للعلوم الانسانية, [S.l.], v. 23, n. 4, p. 253-343, mar. 2019. ISSN 1817-6798. Available at: <http://jtuh.tu.edu.iq/index.php/hum/article/view/384>. Date accessed: 19 may 2024. doi: http://dx.doi.org/10.25130/hum.v23i4.384.