ABBOOD, A., & 		Hassan, A.
(2020).
 The Effectiveness of Employing a Teaching Strategy Based on Mock System Diagrams in Achieving Social studies for Second-grade Students and Their Orientation towards Them.
<em>Journal Of Tikrit University For Humanities - مجلة جامعة تكريت للعلوم الانسانية, 27</em>(3), 405-383.
doi:10.25130/hum.v27i3.1000