Hasan, Istiqlal Falih, and Elham Jabbar Faris. “The Impact of Instructional Design - Learning According to the Kagan Structures in the Achievement of the First Grade Students in Mathematics”. Al-Adab Journal 2, no. 132 (March 15, 2020): 181–204. Accessed April 7, 2025. https://aladabj.uobaghdad.edu.iq/index.php/aladabjournal/article/view/789.