PROMOTING HIGH-LEVEL MATHEMATICAL THINKING THROUGH PROBLEM-SOLVING ACTIVITIES IN INDONESIAN PRIMARY SCHOOLS. Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam, [S. l.], v. 2, n. 1, p. 1–7, 2001. DOI: 10.18269/jpmipa.v2i1.34892. Disponível em: https://ejournal-science.upi.edu/jpmipa/article/view/293. Acesso em: 1 jul. 2026.