Dr. Firas Zaboun Shalash AlJizani. The effect of the numbered heads strategy on the achievement of fourth year middle school students in history. Euro. J.His.Geo. Eco. [Internet]. 2024 Mar. 28 [cited 2024 Nov. 7];30:22-36. Available from: https://geniusjournals.org/index.php/ejhge/article/view/5855