Yayuk, E., B. I. Suwandayani, A. A. P. Rosyadi, D. W. Ekowati, and A. D. Ismail. “Effectiveness of Using a Bar Model in Solving Story Problems for Elementary School Students”. Research and Development in Education (RaDEn), vol. 4, no. 2, Sept. 2024, pp. 804-15, doi:10.22219/raden.v4i2.35295.