SIKA, Sika; MUDA, Mohd Fakri; ZAINUDIN, Mohd Razmi; DIANA, Nanang; MARIAMAH, Mariamah; SYARIFUDIN, Syarifudin; MUSLIM, Muslim. Improving the Process of Understanding the Representation of Spatial Shapes Through the Problem-Based Learning Model Assisted by Ethnomathematics in Junior High School Students. Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, [S. l.], v. 14, n. 3, p. 1690–1703, 2026. DOI: 10.33394/j-ps.v14i3.20774. Disponível em: https://e-journal.undikma.ac.id/index.php/prismasains/article/view/20774. Acesso em: 8 sep. 2026.