Meylan Hanna Sitinjak, Theresia Siahaan, Hetdy Sitio. The Influence of The Student Teams Achievement Divisions (STAD) Cooperative Learning Model on Class III Student Learning Outcomes Theme 1 Subtheme 1 at UPTD SD Negeri 125543 Pematang Siantar. IJIST [Internet]. 2023 Oct. 31 [cited 2026 Apr. 27];1(4):401-8. Available from: https://www.journal.multitechpublisher.com/index.php/ijist/article/view/606