PENERAPAN PENDEKATAN OPEN-ENDED TERHADAP PENINGKATAN KEMAMPUAN KOMUNIKASI MATEMATIK SISWA SMP MELALUI LESSON STUDY BERBASIS MGMP JALANCAGAK. Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam, [S. l.], v. 18, n. 1, p. 9–15, 2013. DOI: 10.18269/jpmipa.v18i1.36111. Disponível em: https://ejournal-science.upi.edu/jpmipa/article/view/594. Acesso em: 1 jul. 2026.