Nazwa P, Apriani DE, Siburian GMB, Situmorang R, Simamora SA, Rambe YM, Aprilia Y, Siregar BH. Improving Understanding of Mathematical Concepts Through Contextual Teaching and Learning (CTL): A Case Study at Junior High School 14 Pematangsiantar. JPM [Internet]. 2025 Mar. 27 [cited 2026 Jul. 29];11(1):23-3. Available from: https://riset.unisma.ac.id/index.php/jpm/article/view/23382