Muzdalipah, Ipah, Marsigit Marsigit, and Sri Andayani. 2026. “Tracing Students’ Cognitive Progression in Geometry: A Design-Based Research Through the Van Hiele Model of Instruction and Ethnomathematics”. Prisma Sains : Jurnal Pengkajian Ilmu Dan Pembelajaran Matematika Dan IPA IKIP Mataram 14 (1):76-93. https://doi.org/10.33394/j-ps.v14i1.18025.