Riasman R, Simarmata EJ, Samosir R. a Classroom Action Research on the Impact of Demonstrative Teaching Methods on Teacher Effectiveness and Student Learning Outcomes. jptam [Internet]. 2024 Feb. 2 [cited 2024 Nov. 20];8(1):6886-9. Available from: https://jptam.org/index.php/jptam/article/view/13452