Krisdianto, Indun, Sudarmiani Sudarmiani, and Nurhadji Nugraha. “Problem-Based Learning Model in Elementary School Students: Learning Activity and Learning Outcomes”. Journal Evaluation in Education (JEE) 7, no. 2 (April 24, 2026): 390-398. Accessed April 26, 2026. https://cahaya-ic.com/index.php/JEE/article/view/2655.