PERANAN OBSERVER DALAM LESSON STUDY (SATU TELAAH TEORITIS DAN PRAKTIS). Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam, [S. l.], v. 8, n. 1, p. 11–31, 2006. DOI: 10.18269/jpmipa.v8i1.35152. Disponível em: https://ejournal-science.upi.edu/jpmipa/article/view/317. Acesso em: 1 jul. 2026.