Aam Sumia, Ahmad Mulyadiprana, Pidi Mohamad Setiadi. The RADEC Learning Model and its Effect on Understanding the Concept of Economic Activities of Grade IV Elementary School Students. JPLED [Internet]. 2025 Aug. 28 [cited 2026 May 3];5(3):846-5. Available from: https://www.digitalpress.gaes-edu.com/index.php/jpled/article/view/681