Hodiyanto, Hodiyanto, et al. “Development of Ethnomathematics-Integrated Android-Based Media for Enhancing Problem-Solving Skills in Secondary Geometry Learning”. JRAMathEdu (Journal of Research and Advances in Mathematics Education), vol. 11, no. 1, Jan. 2026, pp. 13-29, doi:10.23917/jramathedu.v11i1.13730.