GHANI, A. A.; ZULKARNAEN, R. Studi Kasus Tingkat Berpikir Geometri Siswa SMP Berdasarkan Teori Van Hiele. Prosiding Sesiomadika, [S. l.], v. 2, n. 1e, 2019. Disponível em: https://journal.unsika.ac.id/sesiomadika/article/view/2889. Acesso em: 22 nov. 2024.