FARHAN HAIKAL DANI; PAMUJO. PENINGKATAN PRESTASI BELAJAR MATEMATIKA MELALUI MODEL PROBLEM BASED LEARNING BERBANTU MEDIA KARTU BILANGAN SISWA KELAS VI SD NEGERI 3 TAMBAKSOGRA. Trigonometri: Jurnal Matematika dan Ilmu Pengetahuan Alam, [S. l.], v. 4, n. 3, p. 71–80, 2024. DOI: 10.3483/trigonometri.v4i3.6511. Disponível em: http://ejournal.warunayama.org/index.php/trigonometri/article/view/6511. Acesso em: 1 aug. 2025.