Yayuk, E., Suwandayani, B. I., Rosyadi, A. A. P., Ekowati, D. W., & Ismail, A. D. (2024). Effectiveness of using a bar model in solving story problems for elementary school students. Research and Development in Education (RaDEn), 4(2), 804–815. https://doi.org/10.22219/raden.v4i2.35295