SHOCHIB, M. PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) UNTUK MENINGKATKAN AKTIVITAS DAN HASIL BELAJAR MATEMATIKA PADA MATERI GEOMETRI RUANG. Indonesian Journal of Educational Research and Review, [S. l.], v. 3, n. 1, p. 20–27, 2020. DOI: 10.23887/ijerr.v3i1.24495. Disponível em: https://ejournal.undiksha.ac.id/index.php/IJERR/article/view/24495. Acesso em: 10 mar. 2025.