LESTARIYANI, S.; RATU, N.; YUNIANTA, T. N. H. IDENTIFIKASI TAHAP BERPIKIR GEOMETRI SISWA SMP NEGERI 2 AMBARAWA BERDASARKAN TEORI VAN HIELE. Satya Widya, [S. l.], v. 30, n. 2, p. 96–103, 2014. DOI: 10.24246/j.sw.2014.v30.i2.p96-103. Disponível em: https://ejournal.uksw.edu/satyawidya/article/view/595. Acesso em: 15 sep. 2024.