SUMAJI, Sumaji; WIDIANINGRUM, Evi; WANABULIANDARI, Savitri; PREMPRAYOON, Kasem. The effectiveness of problem-based learning assisted with the ethnomathematics-based Geocube e-module on problem-solving skills. JRAMathEdu (Journal of Research and Advances in Mathematics Education), [S. l.], v. 10, n. 3, p. 135–145, 2025. DOI: 10.23917/jramathedu.v10i3.3228. Disponível em: https://journals2.ums.ac.id/jramathedu/article/view/3228. Acesso em: 9 jul. 2026.