Wati EB, Fauzan A. The Influenceof Cooperative Learning Model Group Investigation (GI) Type and Learning Motivation Approach With the Understanding Concepts and Solving Mathematical Problem on Grade 7 in Upt Smp Negeri Airpura. IJEDS [Internet]. 2020 Jan. 17 [cited 2026 May 1];2(1):44-5. Available from: http://ijeds.ppj.unp.ac.id/index.php/IJEDS/article/view/231