Surya, Y. F., Atmoko, A., Nusantara, T., Masfufha, A., & Sumianto, S. (2025). The Effectiveness of Problem-Based Learning in Enhancing Reflective-Critical Thinking Skills of Elementary School Students in Science Learning. Journal of Integrated Elementary Education, 5(2), 323–338. https://doi.org/10.21580/jieed.v5i2.28077