PENGEMBANGAN HYPOTHETICAL LEARNING TRAJECTORY MATERI PENJUMLAHAN DAN PENGURANGAN ALJABAR KELAS VII DENGAN PENDEKATAN REALISTIC MATHEMATICS EDUCATION. Journal of Mathematics Education Research, [S. l.], v. 5, n. 1, p. 1–9, 2026. Disponível em: https://journalng.uwks.ac.id/jmer/article/view/901.. Acesso em: 31 may. 2026.